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Atomistic simulations of cellulose nanofibrils and their aggregates in water

Authors: Paajanen, Antti; Sonavane, Yogesh; Maloney, Thaddeus; Paavilainen, Sami; Ketoja, Jukka
The 4th International Cellulose Conference, 17 - 20 October 2017, Fukuoka, Japan
. The Cellulose Society of Japan  (2017)
Keywords: cellulose, nanofibril, aggregate, water, molecular dynamics, ProperTune
IN ENGLISH

Building a reactive molecular dynamics framework for cellulose pyrolysis studies

Authors: Vaari, Jukka; Paajanen, Antti
The 4th International Cellulose Conference, 17 - 20 October 2017, Fukuoka, Japan
. The Cellulose Society of Japan (2017)
Keywords: cellulose, pyrolysis, molecular dynamics, ReaxFF, ProperTune
IN ENGLISH

Hygro-thermal models

Authors: Fortino, Stefania
In: Performance of Bio-Based Building Materials. Woodhead Publishing (2017)
Keywords: ProperTune
IN ENGLISH
https://www.elsevier.com/books /performance-of-bio-based-building-materials/jones/978-0-08-100982-6

A numerical approach to study the effects of coatings on the moisture gradients and moisture induced stresses in glulam beams of timber bridges

Authors: Fortino, S.; Hradil, P.; Pousette, A.
ECCOMAS Thematic Conference on Computational Methods in Wood Mechanics - from Material Properties to Timber Structures, CompWood 2017, 7 - 9 June 2017, Vienna, Austria
Book of abstracts. TU Verlag (2017)
Keywords: ProperTune
IN ENGLISH
http://shop.tuverlag.at/de/the-compwood-2017-pr ogramme-book-of-abstracts?info=177

Effect of Northern European climates on the cupping of stress-laminated timber decks. A numerical study

Authors: Fortino, S.; Hradil, P.; Metelli, G.; Ossoli, F.; Pousette, A.; Toratti, T.
3rd International Conference on Timber Bridges, ICTB 2017, 26 - 29 June 2017, Skellefteå, Sweden
Proceedings. SP Technical Research Institute of Sweden; Luleå University of Technology (2017), 9 p.
Keywords: ProperTune

Simulation of moisture diffusion in timber bridges exposed to rain

Authors: Hradil, P.; Fortino, S.; Metelli, G.; Musci, A.; Dohnal, J.; Fredriksson, M.
3rd International Conference on Timber Bridges, ICTB 2017, 26 - 29 June 2017, Skellefteå, Sweden
Proceedings. Luleå University of Technology; SP Technical Research Institute of Sweden (2017) , 10 p.
Keywords: ProperTune, timber bridges, moisture content, effect of rain, single-phase models, FEM
IN ENGLISH

3D-printable bioactivated nanocellulose-alginate hydrogels

Authors: Leppiniemi, Jenni; Lahtinen, Panu; Paajanen, Antti; Mahlberg, Riitta; Metsä-Kortelainen, Sini; Pinomaa, Tatu; Pajari, Heikki; Vikholm-Lundin, Inger; Pursula, Pekka; Hytönen, Vesa
ACS Applied Materials and Interfaces. American Chemical Society. Vol. 9 (2017)  No: 26, 21959-21970
Keywords: 3D printing, alginate, avidin, hydrogel, nanocellulose, wound healing, ProperTune
IN ENGLISH
DOI: 10.1021/acsami.7b02756

High-temperature decomposition of the cellulose molecule: a stochastic molecular dynamics study

Authors: Paajanen, Antti; Vaari, Jukka
Cellulose. Springer . Vol. 24 (2017) No: 7, 2713-2725
Keywords: cellulose, pyrolysis, molecular dynamics, stochastic simulation, reaxFF, ProperTune
IN ENGLISH
DOI: 10.1007/s10570-017-1325-7

Topographical orientation effects on surface stresses influencing on wear in sliding DLC contacts, Part 2: Modelling and simulations

Authors: Laukkanen, A.; Holmberg, K.; Ronkainen, H.; Stachowiak, G.; Podsiadlo, P.; Wolski, M.; Gee, M.; Gachot, C.; Li, L.
Wear. Elsevier . Vol. 388-389 (2017), 18-28
Keywords: Friction, Wear, Topography, FEM modeling, DLC, ProperTune
IN ENGLISH
DOI: 10.1016/j.wear.2017.03.026

Multiscale characterisation of 3D surface topography of DLC coated and uncoated surfaces by directional blanket covering (DBC) method

Authors: Wolski, M.; Podsiadlo, P.; Stachowiak, G.W.; Holmberg, K.; Laukkanen, A.; Ronkainen, H.; Gee, M.; Nunn, J.; Gachot, C.; Li, L.
Wear . Elsevier. Vol. 388-389 (2017), 47-56
Keywords: DLC coatings, surface characterisation, fractals, ProperTune
IN ENGLISH
DOI: 10.1016/j.wear.2017.03.021

DC conduction and breakdown behavior of thermally sprayed ceramic coatings

Authors: Niittymäki, Minna; Lahti, Kari; Suhonen, Tomi; Metsäjoki, Jarkko
IEEE Transactions on Dielectrics and Electrical Insulation. IEEE. Vol. 24 (2017) No: 1, 499 - 510
Keywords: spinel, dielectric breakdown, conductivity, thermally sprayed ceramic coating, alumina, ProperTune
IN ENGLISH
DOI: 10.1109/TDEI.2016.006156

Integrated computational materials engineering for emerging manufacturing technologies

Authors: Andersson, Tom; Laukkanen, Anssi; Sippola, Merja; Majaniemi, Sami; Pinomaa, Tatu; Suhonen, Tomi
In: Towards a new era in manufacturing. Final report of VTT's For Industry spearhead programme
VTT Technology : 288
VTT, 2017, 66-71
Keywords: ProperTune
IN ENGLISH
http://www.vtt.fi/inf/pdf/technology/2017/T288.pdf

Multiscale Materials Modeling of Coatings

Authors: Suhonen, Tomi; Laukkanen, Anssi; Andersson, Tom; Pinomaa, Tatu; Holmberg, Kenneth
7th Tsukuba International Coating Symposium, 8 - 9 December 2016, Tsukuba, Ibaraki, Japan
Proceedings. AIST; NIMS ( 2016), 20-23
Keywords: ProperTune
IN ENGLISH

VTT ProperTune - Computational Multiscale Materials Modeling Concept

Authors: Suhonen, Tomi; Laukkanen, Anssi; Andrsson, Tom; Pinomaa, Tatu; Holmberg, Kenneth
Thermal Spray Bulletin . DVS Media GmbH . Vol. 68 (2016) No: 2, 102-106
Keywords: ProperTune
IN ENGLISH

Modeling the 3D Printing of Nanocellulose Hydrogels

Authors: Paajanen, Antti; Pinomaa, Tatu; Pajari, Heikki; Metsä-Kortelainen, Sini; Lahtinen, Panu; Nurmela, Asta
NAFEMS Nordic Seminar, Exploring the Design Freedom of Additive Manufacturing through Simulation, 22 - 23 November 2016, Helsinki, Finland
. NAFEMS NORDIC; VTT (2016)
Keywords: 3D printing, nanocellulose, hydrogel, computational fluid dynamics, ProperTune
IN ENGLISH

Multiscale materials modeling for metal additive manufacturing

Authors: Laukkanen, Anssi; Andersson, Tom; Pinomaa, Tatu; Majaniemi, Sami; Sippola, Merja; Suhonen, Tomi
NAFEMS Exploring the Design Freedom of Additive Manufacturing through Simulation, 22 - 23 November 2016, Helsinki, Finland
. NAFEMS (2016)
Keywords: ProperTune
IN ENGLISH

VTT ProperTune - computational multiscale materials modeling concept

Authors: Suhonen, Tomi; Laukkanen, Anssi; Andersson, Tom; Pinomaa, Tatu; Holmberg, Kenneth
MATCH Materials Common House. European Commission (2016) No: 23 May
Keywords: ProperTune
IN ENGLISH
http://www.match-a4m.eu/index.php/latest/news/148-propertune

Effective interface model for design and tailoring of wc-co microstructures

Authors: Laukkanen, A.; Pinomaa, T.; Holmberg, K.; Andersson, T.
Powder Metallurgy. Taylor & Francis. Vol. 59 (2016)  No: 1, 20-30
Keywords:  Nano-microstructural modelling, Finite element modelling, Mesoscale modelling, Composites, Tungsten Carbide, ProperTune
IN ENGLISH
DOI: 10.1080/00325899.2015.1130960

Optimization and simulation of SLM process for high density H13 tool steel parts

Authors: Laakso, Petri; Riipinen, Tuomas; Laukkanen, Anssi; Andersson, Tom; Jokinen, Antero; Revuelta, Alejandro; Ruusuvuori, Kimmo
9th International Conference on Photonic Technologies, LANE 2016, 19 - 22 September 2016,Fürth, Germany
Physics Procedia. Elsevier. Vol. 83  (2016), 26-35
Keywords: density, design of experiments, finite element, H13 tool steel, optimization, Selective Laser Melting, simulation model, ProperTune
IN ENGLISH
DOI: 10.1016/j.phpro.2016.08.004

Optimization of HVOF Cr3C2 -NiCr coating for increased fatigue performance

Authors: Varis, T.; Suhonen, T.; Calonius, O.; Cuban, J.; Pietola, M.
Surface and Coatings Technology. Elsevier. Vol. 305 ( 2016), 123-131
Keywords: fatigue performance, wear resistance, HVOF thermal spray, residual stress, S-N curve, Cr3C2single bondNiCr coating, ProperTune
IN ENGLISH
DOI: 10.1016/j.surfcoat.2016.08.012

Role of microstructure in dielectric properties of thermally sprayed ceramic coatings

Authors: Niittymäki, Minna; Rytöluoto, Ilkka; Lahti, Kari; Metsäjoki, Jarkko; Suhonen, Tomi
1st IEEE International Conference on Dielectrics, ICD 2016, 3 - 7 July 2016, Montellier, France
Proceedings . IEEE (2016), 1102-1105
Keywords: alumina, breakdown, ceramic, coating, microstructure, permittivity, Porosity, resistivity, spinel, spray, thermal, ProperTune
IN ENGLISH
DOI: 10.1109/ICD.2016.7547811

Atomistic molecular dynamics simulations on the interaction of TEMPO-oxidized cellulose nanofibrils in water

Authors: Paajanen, Antti; Sonavane, Yogesh; Ignasiak, Dominika; Ketoja, Jukka A.; Maloney, Thad C.; Paavilainen, Sami
Cellulose .  Springer. Vol. 23 (2016) No: 6, 3449-3462
Keywords: cellulose nanofibril , electrostatic interaction, functionalization, molecular dynamics, TEMPO-oxidation, ProperTune
IN ENGLISH
DOI: 10.1007/s10570-016-1076-x

Time-resolved X-ray microtomographic measurement of water transport in wood-fibre reinforced composite material

Authors: Miettinen, Arttu; Harjupatana, Tero; Kataja, Markku; Fortino, Stefania; Immonen, Kirsi
37th Risoe International Symposium on Materials Science
IOP Conference Series: Materials Science and Engineering. IOP. Vol. 139 (2016) No: 1,  012037, 8 p.
Keywords: X-ray microtomography , wood-fibres, PLA, biocomposites, water tranport, ProperTune
IN ENGLISH
DOI: 10.1088/1757-899X/139/1/012037

A multi-Fickian hygro-thermal model for timber bridge elements under Northern Europe climates

Authors: Fortino, Stefania; Hradil, Petr; Genoese, Andrea; Genoese, Alessandra; Pousette, Anna; Fjellström, Per-Anders
World conference in Timber Engineering, WCTE 2016, 22 - 25 August 2016, Vienna, Austria
.  Vienna University of Technology (2016), 8 p.
Keywords: timber bridges, moisture, monitoring, wood hysteresis, hygro-thermal models, FEM, ProperTune
IN ENGLISH

Effect of moisture induced stresses on the mechanical performance of glulam beams of Vihanyasalmi bridge

Authors: Hradil, Petr; Fortino, Stefania; Salokangas, Lauri; Musci, Alessandro; Metelli, Giovanni
World conference in Timber Engineering, WCTE 2016, 22 - 25 August 2016, Vienna, Austria
. Vienna University of Technology (2016), 9 p.
Keywords: timber bridges, monitoring, moisture induced stresses, Eurocode 5, ProperTune
IN ENGLISH

Novel Al-based metallic glass coatings by Cold Gas Spray

Authors: Henaoa, John; Concustella, Amadeu; Cano, Irene G.; Dosta, Sergi; Cinca, Núria; Guilemany, Josep M.; Suhonen, Tomi
Materials and design . Elsevier. Vol. 94 (2016), 253-261
Keywords: metallic glasses, wear behavior, corrosion behavior, Cold Gas Spray, ProperTune
IN ENGLISH
DOI: 10.1016/j.matdes.2016.01.040

An investigation into the effect of substrate on the load-bearing capacity of thin hard coatings

Authors: Wang, Chuan Ting; Hakala, Timo J.; Laukkanen, Anssi; Ronkainen, Helena; Holmberg, Kenneth; Gao, Nong; Wood, Robert J.K.; Langdon, Terence G.
Journal of Materials Science. Springer. Vol. 51  (2016) No: 9, 4390-4398
Keywords: ProperTune
IN ENGLISH
DOI: 10.1007/s10853-016-9751-8

Predicting stiffness and strength of birch pulp - Polylactic acid composites

Authors: Sippola, Merja; Immonen, Kirsi; Miettinen, Arttu; Laukkanen, Anssi; Andersson, Tom; Peltola, Heidi; Harlin, Ali; Holmberg, Kenneth
Journal of Composite Materials. Sage Publications. Vol. 50  (2016) No: 18, 2549-2563
Keywords: fibres, polymer matrix composites, short fibre composites, strength, elastic properties, finite element modelling, model, microtomography, image analysis, ProperTune
IN ENGLISH
DOI: 10.1177/0021998315608431

Gas atomized thermal spray powders of various metals and alloys

Authors: Lagerbom, Juha; Ritvonen, Tapio; Suhonen, Tomi; Varis, Tommi
Euro PM2011 Congress & Exhibition, 9 - 12 October 2011, Barcelona, Spain
Proceedings. EPMA (2015), 6 p.
Keywords: ProperTune
IN ENGLISH
https://www.epma.com/euro-p m2011-proceedings/506-euro-pm2011-powder-manufacturing-and-processing/file

Effective interface model for design and tailoring of wc-co microstructures

Authors: Laukkanen, A.; Andersson, T.; Pinomaa, T.; Holmberg, K.
International Power Metallurgy Congress and Exhibition, Euro PM 2015, 4 - 7 October 2015, Reims, France
Proceedings. European Powder Metallurgy Association (EPMA) (2015)
Keywords: ProperTune
IN ENGLISH

Phase field analysis of solidification structures and interface composition in WC-Co Hardmetals

Authors: Pinomaa, T.; Laukkanen, A.; Gurevich, S.; Provatas, N.
International Power Metallurgy Congress and Exhibition, Euro PM 2015, 4 - 7 October 2015, Reims, France
Proceedings. Proceedings. European Powder Metallurgy Association (EPMA) (2015)
Keywords: ProperTune
IN ENGLISH

Mesoscale modelling of short crack initiation in metallic selective laser melting microstructures

Authors: Andersson, T.; Laukkanen, A.; Pinomaa, T.; Jokinen, A.; Vaajoki, A.; Laitinen, T.
International Power Metallurgy Congress and Exhibition, Euro PM 2015, 4 - 7 October 2015, Reims, France
Proceedings . European Powder Metallurgy Association (EPMA) (2015)
Keywords: ProperTune
IN ENGLISH

Electric field dependency of dielectric behavior of thermally sprayed ceramic coatings

Authors: Niittymäki, M.; Lahti, K.; Suhonen, T.; Metsäjoki, J.
IEEE 11th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2015, 19 - 22 July 2015, Sydney, Australia
Proceedings. UEEE (2015), 500-503
Keywords: alumina, breakdown, ceramic, coating, dc conductivity, dielectric spectroscopy, HVOF, loss index, resistivity, spinel, thermal spraying, ProperPart, ProperTune
IN ENGLISH
DOI: 10.1109/ICPADM.2015.7295318

A multi-Fickian model to simulate the hygro-thermal behaviour of stress-laminated timber decks

Authors: Fortino, Stefania; Hradil, Petr; Sippola, Merja; Genoese, Andrea; Genoese, Alessandra
Euromech Colloquium 556, Theoretical, Numerical, and Experimental Analyses in Wood Mechanics, 8 - 10 May 2015, Dresden, Germany
Proceedings. Dresden, Germany (2015), 2 p.
Keywords:  stress-laminated timber decks, hygro-thermal effects, multi-Fickian models, FEM, ProperTune
IN ENGLISH

The Deformation, Strain Hardening, and Wear Behavior of Chromium-Alloyed Hadfield Steel in Abrasive and Impact Conditions

Authors: Lindroos, Matti; Apostol, Marian; Heino, Vuokko; Valtonen, Kati; Laukkanen, Anssi; Holmberg, Kenneth; Kuokkala, Veli-Tapani
Tribology Letters. Springer. Vol. 57 (2015) No: 3,  Article 24
Keywords: hadfield manganese steel, work hardening, high strain rate, abrasive wear, impact wear, plasticity, ProperTune
IN ENGLISH
DOI: 10.1007/s11249-015-0477-6

Experimental study on the behavior of wear resistant steels under high velocity single particle impacts

Authors: Lindroos, Matti; Apostol, Maria; Kuokkala, Veli-Tapani; Laukkanen, Anssi; Valtonen, Kati; Holmberg, Kenneth; Oja, Olli
International Journal of Impact Engineering. Elsevier. Vol. 78 (2015) , 114-127
Keywords: high strength steel, impact wear, adiabatic shear band, high strain rate, ProperPart, ProperTune
IN ENGLISH
DOI: 10.1016/j.ijimpeng.2014.12.002

Topographical orientation effects on friction and wear in sliding DLC and steel contacts, part 1: Experimental

Authors: Holmberg, Kenneth; Laukkanen, Anssi; Ronkainen, Helena; Waudby, Richard; Stachowiak, Gwidon; Wolski, Marcin; Podsiadlo, Pawel; Gee, Mark; Nunn, John; Gachot, Carsten; Li, Lawrence
Wear. Elsevier . Vol. 330-331 (2015), 3-22
Keywords: friction, wear, topography, orientation, modelling, ProperTune
IN ENGLISH
DOI: 10.1016/j.wear.2015.02.014

Comparison of laboratory rolling-sliding wear tests with in-service wear of nodular cast iron rollers against wire ropes

Authors: Oksanen, V.; Valtonen, K.; Andersson, P.; Vaajoki, A.; Laukkanen, A.; Holmberg, K.; Kuokkala, V.T.
Wear. Elsevier . Vol. 340-341 (2015), 73-81
Keywords: contact mechanics, nodular cast iron, rolling contact fatigue, rolling-sliding, wear testing, wire rope, ProperTune
IN ENGLISH
DOI: 10.1016/j.wear.2015.07.006

Microstructures, microhardness, and crystallization behaviors of amorphous Al2 O3-YSZ coatings prepared by air plasma spraying

Authors: Song, X.; Suhonen, T.; Sun, C.; Huang, L.; Zheng, X.; Zeng, Y.
Surface Review and Letters. World Scientific Publishing . Vol. 22 (2015) No: 4, 1550047, 12 p.
Keywords: air plasma spraying, Amorphous Al2 O3-YSZ coatings, crystallization, heat treatment, microstructure, ProperPart, ProperTune
IN ENGLISH
DOI: 10.1142/S0218625X1550047X

Effect of melting state on the thermal shock resistance and thermal conductivity of APS ZrO2-7.5 wt.% Y2O3 coatings

Authors: Song, Xuemei; Liu, Ziwei; Suhonen, Tomi; Varis, Tommi; Huang, Liping; Zheng, Xuebin; Zeng, Yi
Surface and Coatings Technology . Elsevier. Vol. 270 (2015) No: May, 132-138
Keywords: air plasma spraying, YSZ coatings, columnar grains, thermal shock resistance, thermal conductivity, ProperPart, ProperTune
IN ENGLISH
DOI: 10.1016/j.surfcoat.2015.03.011

Dielectric breakdown strength of thermally sprayed ceramic coatings: Effects of different test arrangements

Authors: Niittymäki, M.; Lahti, K.; Suhonen, Tomi; Metsäjoki, Jarkko
Journal of Thermal Spray Technology. ASM International . Vol. 24 (2015) No: 3, 542-551
Keywords: Al2O3, breakdown strength, coating, dielectric, HVOF, thermal spraying, ProperPart, ProperTune
IN ENGLISH
DOI: 10.1007/s11666-014-0211-1

Evaluation of crushing strength of spray-dried MgAl2O4 granule beds

Authors: Kanerva, Ulla; Suhonen, Tomi; Lagerbom, Juha; Levänen, E.
Ceramics International. Elsevier. Vol. 41 (2015)  No: 7, 8494-8500
Keywords: axial pressing, granule, MgAl2O4 spinel, the crushing strength, ProperPart, ProperTune
IN ENGLISH
DOI: 10.1016/j.ceramint.2015.03.056

High temperature corrosion of thermally sprayed NiCr and FeCr coatings covered with a KCl-K2SO4 salt mixture

Authors: Varis, Tommi; Bankiewicz, D.; Yrjas, P.; Oksa, Maria; Suhonen, Tomi; Tuurna, Satu; Ruusuvuori, Kimmo; Holmström, Stefan
Surface and Coatings Technology. Elsevier. Vol. 265 (2015),  235-243
Keywords: thermal spray coating , HVOF, wire arc, biomass, high temperature corrosion, corrosion protection, ProperPart, ProperTune
IN ENGLISH
DOI: 10.1016/j.surfcoat.2014.11.012

The effect of impact conditions on the wear and deformation behavior of wear resistant steels

Authors: Lindroos, Matti; Ratia, Vilma; Apostol, Marian; Valtonen, Kati; Laukkanen, Anssi; Molnar, Wolfgang; Holmberg, Kenneth; Kuokkala, Veli-Tapani
Wear. Elsevier. Vol. 328-329 (2015),  197-205
Keywords: high velocity impact , high strength steel, adiabatic shear bands (ABS), wear testing, ProperTune
IN ENGLISH
DOI: 10.1016/j.wear.2015.02.032

Wear behavior and work hardening of high strength steels in high stress abrasion

Authors: Lindroos, M.; Valtonen, K.; Kemppainen, A.; Laukkanen, Anssi; Holmberg, Kenneth; Kuokkala, V.-T.
Wear. Vol. 322-323  (2015), 32 - 40
Keywords: abrasion, hardening, tribology, wear of materials, wear resistance, high strength steels, scratch testing, ProperTune
IN ENGLISH
DOI: 10.1016/j.wear.2014.10.018

A 3D micromechanical study of deformation curves and cell wall stresses in wood under transverse loading

Authors: Fortino, Stefania; Hradil, Petr; Salminen, Lauri I.; De Magistris, Federica
Journal of Materials Science. Vol. 50 ( 2015) No: 1, 482-492
Keywords: wood cell, microstructure, FEM, pulp, wood fibres, ProperTune
IN ENGLISH
DOI: 10.1007/s10853-014-8608-2

Influence of humidity and temperature on the dielectric properties of thermally sprayed ceramic MgAl2O4 coatings

Authors: Niittymäki, Minna; Lahti, Kari; Suhonen, Tomi; Kanerva, Ulla; Metsäjoki, Jarkko
IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2014, 19 - 22 October 2014, Des Moines, United States
Proceedings. IEEE (2014)
Keywords: ProperTune
IN ENGLISH
DOI: 10.1109/CEIDP.2014.6995894

Modeling the gas flow and coating particles in the hydrogen fueled HVOF process

Authors: Pinomaa, Tatu; Suhonen, Tomi; Varis, Tommi
International Thermal Spray Conference, ITSC 2014, 21 - 23 May 2014, Barcelona, Spain
. DVS, German Welding Society (2014), 629-633
Keywords: ProperTune

Multiscale modelling of microstructural defects and influence on mechanical properties and wear resistance of thermal spray coatings

Authors: Laukkanen, Anssi; Varis, Tommi; Suhonen, Tomi; Metsäjoki, Jarkko; Andersson, Tom; Laitinen, Tarja
International Thermal Spray Conference, ITSC 2014, 21 - 23 May 2014, Barcelona, Spain
. DVS, German Welding Society (2014), 568-571
Keywords: ProperTune
IN ENGLISH

Fabrication and Characterization of Amorphous Alumina-Yttria-Stabilized Zirconia Coatings by Air Plasma Spraying

Authors: Song, Xuemei; Suhonen, Tomi; Varis, Tommi; Huang, Liping; Zheng, Xuebin; Zeng, Yi
Journal of Thermal Spray Technology . Springer . Vol. 23 (2014) No: 8, 1302-1311
Keywords:  alumina-yttria-stabilized zirconia, amorphous phases, atmospheric plasma spraying, microhardness, nanocrystals, thermal stability, ProperPart, ProperTune
IN ENGLISH
DOI: 10.1007/s11666-014-0124-z

Hygro-thermal numerical models for stress-laminated timber decks

Authors: Fortino, Stefania; Hradil, Petr; Sippola, Merja; Toratti, Tomi
COST Timber Bridge Conference (CTBC 2014), Biel, Switzerland, 25-26.9.2014 (2014), 8 p.
Keywords:  Stress-laminated timber deck, Moisture content, Monitoring, Hygro-thermal models, FEM, ProperTune
IN ENGLISH

Scratch tests of PEG-impregnated samples of green wood

Authors: Fortino, Stefania; Salminen, Lauri I.; Sirviö, Jari; Metsäjoki, Jarkko; Ronkainen, Helena; Bjurhager, Ingela
16th International Conference on Experimental Mechnics, ICEM16, 7 - 11 July 2014, Cambridge
Proceedings (2014), 2 p.
Keywords: Scratch tests, Green wood, PEG impregnation, Lignocellulosic cell walls, ProperTune
IN ENGLISH

Building a high temperature corrosion and erosion model for thermal spray coatings

Authors: Metsäjoki, Jarkko; Oksa, Maria; Vaari, Jukka; Penttilä, Karri; Laukkanen, Anssi
International Thermal Spray Conference (ITSC), Barcelona 21- 23 May 2014
Conference Abstracts (Including manuscripts on CD-ROM). DVS Media GmbH. Düsseldorf (2014), 836 - 840
Keywords: Thermal spray, coatings, modelling, high temperature, corrosion, erosion, ProperTune
IN ENGLISH
https://www.dvs-ev.de/call4papers/abstract.cfm?pid=3825&vid=69&show=poster

CFD-FEA Simulation Framework for Composite Structures in Fire

Authors: Paajanen, Antti; Hostikka, Simo; Matala, Anna; Gutkin, Renaud
16th European Conference on Composite Materials, ECCM 2014, 22 - 26 June 2014, Seville, Spain
 (2014)
Keywords: ProperTune
IN ENGLISH

Formation Mechanisms, Structure, and Properties of HVOF-Sprayed WC-CoCr Coatings: An Approach Toward Process Maps

Authors: Varis, Tommi; Suhonen, Tomi; Ghabchi, A.; Valarezo, A.; Sampath, S.; Liu, X.; Hannula, S.-P.
Journal of Thermal Spray Technology . ASM International. Vol. 23 (2014) No: 6,  1009 - 1018
Keywords: coatings, fracture toughness, HVOF, process maps, residual stress, ProperTune
IN ENGLISH
DOI: 10.1007/s11666-014-0110-5

Tribological Testing and Modeling of Elastomeric Materials

Authors: Vaajoki, Antti; Laukkanen, Anssi; Waudby, Richard; Kivikytö-Reponen, Päivi; Valtonen, K.; Kuokkala, V.-T.
Key Engineering Materials . Trans Tech Publications. Vol. 604 (2014),  87 - 90
Keywords: tribology, modeling, elastomer, SBR, styrene butadiene rubber, ProperTune
IN ENGLISH
DOI: 10.4028/www.scientific.net/KEM.604.87

Modelling and testing of elastomer impact deformation under high strain rates

Authors: Kivikytö-Reponen, Päivi; Laukkanen, Anssi; Apostol, M; Waudby, Richard; Andersson, Tom; Helle, Aino; Valtonen, K; Kuokkala, V-T
Tribology - Materials, Surfaces and Interfaces . W. S. Maney & Son Ltd.. Vol. 8 (2014)  No: 1, 48 - 54
Keywords: High strain rates beaviour, modelling, ProperTune
IN ENGLISH
DOI: 10.1179/1751584X14Y.0000000067

Wear resistance optimisation of composite coatings by computational microstructural modelling

Authors: Holmberg, Kenneth; Laukkanen, Anssi; Turunen, Erja; Laitinen, Tarja
Surface and Coatings Technology . Elsevier . Vol. 247 (2014) No: May, 1 - 13
Keywords: Composite coatings, modelling, thermal spray, wear mechanisms, ProperTune
IN ENGLISH
DOI: 10.1016/j.surfcoat.2014.02.019

Computational modelling based wear resistance analysis of thick composite coatings

Authors: Holmberg, Kenneth; Laukkanen, Anssi; Ghabchi, Arash; Rombouts, M; Turunen, Erja; Waudby, Richard; Suhonen, Tomi; Valtonen, K; Sarlin, E
Tribology International . Elsevier. Vol. 72 (2014) , 13 - 30
Keywords: Composite coatings, modelling, wear, ProperTune
IN ENGLISH
DOI: 10.1016/j.triboint.2013.12.001

High velocity impact testing of thermal spray hard carbide coatings on steel substrates

Authors: Waudby, Richach; Varis, Tommi; Suhonen, Tomi; Holmberg, Kenneth; Apostol, Marian; Lindroos, Matti; Kuokkala, Veli-Tapani
5th World Tribology Congress, WTC 2013, 8 - 13 September 2013, Torino, Italy
 ( 2013), 4 p.
Keywords: ProperTune
IN ENGLISH

High velocity particle impactor - Modeling and experimental verification of impact wear tests

Authors: Apostol, Marian; Kuokkala, Veli-Tapani; Laukkanen, Anssi; Holmberg, Kenneth; Waudby, Richard; Lindroos, Matti
5th World Tribology Congress, WTC 2013, 8 - 13 September 2013, Torino, Italy
 (2013)
Keywords: ProperTune
IN ENGLISH

The effect of coating characteristics on the performance of a-C:H and ta-C coatings

Authors: Ronkainen, Helena; Laukkanen, Anssi; Holmberg, Kenneth; Kano, M.; Horiuchi, T.; Suzuki, T.
5th World Tribology Congress, WTC 2013, 8 - 13 September 2013, Torino, Italy
 (2013)
Keywords: ProperTune
IN ENGLISH

Disposal canister shock absorber tests and analysis

Authors: Kuutti, Juha; Fortino, Stefania; Hakola, Ilkka; Heinonen, Jaakko
22nd International Conference on Structural Mechanics in Reactor Technology 2013, SMiRT 22, 18 - 23 August 2013, San Francisco, California, USA
. IaSMiRT, International Association for Structural Mechanics in Reactor Technology (2013)
Keywords: disposal canister, accident, impact, shock absorber, ProperTune
IN ENGLISH
http://www.iasmirt.org/transactions/22/Pap_428_ver_2.pdf

A numerical approach for the hygro-thermal monitoring of timber structures under environmental conditions

Authors: Genoese, Alessandra; Genoese, Andrea; Fortino, Stefania; Hradil, Petr
Advanced Materials Research. Trans Tech Publications, Switzerland. Vol. 778 (2013), 786-793
Keywords: timber structures, environmental conditions, monitoring, multi-Fickian models, Abaqus, ProperTune
IN ENGLISH
DOI: 10.4028/www.scientific.net/AMR.778.786

FEM modelling of wood cell deformation under dynamic loads

Authors: Fortino, Stefania; Hradil, Petr
XII International Conference on Computational Plasticity. Fundamentals and Applications, COMPLAS XII, 3 - 5 September 2013, Barcelona, Spain
Published abstract (2013)
Keywords: wood cell, TM pulping, microscale modelling, FEM, ProperTune
IN ENGLISH
http://congress.cimne.com/complas2013/proceedings/pdfs/a668.pdf

Residual stress development in cold sprayed Al, Cu and Ti coatings

Authors: Suhonen, Tomi; Varis, Tommi; Dosta, S.; Torrell, M.; Guilemany, J.M.
Acta Materialia. Elsevier. Vol. 61 (2013 ) No: 17, 6329 - 6337
Keywords: cold spraying, residual stresses, aluminium, copper, titanium, ProperTune
IN ENGLISH
DOI: 10.1016/j.actamat.2013.06.033

Dielectric properties of HVOF sprayed ceramic coatings

Authors: Niittymäki, M.; Suhonen, Tomi; Kanerva, Ulla; Metsäjoki, Jarkko; Lahti, K.
11th IEEE International Conference on Solid Dielectrics, ICSD 2013, 30 June - 4 July 2013, Bologna, Italy
Proceedings. IEEE  (2013), 389 - 392
Keywords: thermal spraying, HVOF, spinel, coating, resistivity, dielectric spectroscopy, dielectric breakdown strenght, ProperTune
IN ENGLISH

Numerical modelling of the hygro-thermal response of timber bridges during their service life: A monitoring case-study

Authors: Fortino, Stefania; Genoese, Alessandra; Genoese, Andrea; Nunes, Lina; Palma, Pedro
Construction and Building Materials . Vol. 47 (2013), 1225-1234
Keywords: Timber bridges, Variable environment, Monitoring techniques, Moisture induced stresses (MIS), Multi-Fickian models, Finite element method, Abaqus code, ProperTune
IN ENGLISH
DOI: 10.1016/j.conbuildmat.2013.06.009

FEM simulation of the hygro-thermal behaviour of wood under surface densification at high temperature

Authors: Fortino, Stefania; Genoese, Andrea; Genoese, Alessandra; Rautkari, Lauri
Journal of Materials Science. Vol. 48 (2013)  No: 21, 7603 - 7612
Keywords: ProperTune
IN ENGLISH
DOI: 10.1007/s10853-013-7577-1

Creep damage and long term life modelling of an X20 steam line component

Authors: Auerkari, Pertti; Salonen, Jorma; Holmström, Stefan; Laukkanen, anssi; Rantala, Juhani; Nikkarila, R.
Engineering Failure Analysis. Elsevier. Vol. 35 (2013), 508 - 515
Keywords: creep, life time estimation, modelling, steam line, ProperTune
IN ENGLISH
DOI: 10.1016/j.engfailanal.2013.05.008

Finite element analysis of coating adhesion failure in pre-existing crack field

Authors: Holmberg, Kenneth; Laukkanen, Anssi; Ronkainen, Helena; Wallin, Kim
Tribology - Materials, Surfaces and Interfaces. Maney Publishing. Vol. 7 (2013) No: 1 , 42 - 51
Keywords: coating, crack, finite element method, fracture, scratch test, ProperTune
IN ENGLISH
DOI: 10.1179/1751584X13Y.0000000030
http://www.vtt.fi/inf/julkaisut/muut/2013/OA-Finite_element_analysis.pdf

FDS2FEM - a tool for coupling fire and structural analyses

Authors: Paajanen, Antti; Korhonen, Timo; Sippola, Merja; Hostikka, Simo; Malendowski, Michal; Gutkin, Renaud
IABSE Workshop Helsinki 2013: Safety, Failures and Robustness of Large Structures, Helsinki, Finland, 14.-15.2.2013. International Association for Bridge and Structural Engineering. Helsinki, FI (2013), 218-224
Keywords: fire-structural analysis, fire dynamics simulator, abaqus, fds2fem, ProperTune
IN ENGLISH

Multiscale modelling and design for engineering application

Authors: Laitinen, Tarja; Wallin, Kim (eds.)
VTT Technology  : 77
VTT, Espoo, 2013. 122 p.
Keywords: multiscale modelling , design, material performance, simulation, ProperTune
IN ENGLISH

Development and application of HVOF sprayed spinel protective coating for SOFC interconnects

Authors: Thomann, Olivier; Pihlatie, Mikko; Rautanen, Markus; Himanen, Olli; Lagerbom, Juha; Mäkinen, Maija; Varis, Tommi; Suhonen, Tomi; Kiviaho, Jari
Journal of Thermal Spray Technology. ASM; Springer . Vol. 22 (2013) No: 5, 631 - 639
Keywords: ASR, HVOF spraying, interconnect, protective coating, SOFC, spinel, stack testing, ProperTune
IN ENGLISH
DOI: 10.1007/s11666-012-9880-9

Microstructure and tribological properties of pulsed electric current sintered alumina-zirconia nanocomposites with different solid lubricants

Authors: Erkin Cura, M.; Kim, S.-H.; Muukkonen, Tatu; Varjus, Simo; Vaajoki, Antti; Söderberg, O.; Suhonen, Tomi; Kanerva, Ulla; Wohn Lee, S.; Hannula, S.-P.
Ceramics International . Vol. 39 (2013)  No: 2, 2093 - 2105
Keywords: Nanocomposites, mechanical propetries, Al 2O 3, pulsed electric current sintering, ProperPart, ProperTune
IN ENGLISH
DOI: 10.1016/j.ceramint.2012.08.065

Wear models

Authors: Holmberg, Kenneth; Laukkanen, Anssi
In: Handbook of Lubrication and Tribology, Volume II: Theory and Design, Second Edition. CRC Press (2012),  1-21
Keywords: ProperTune
IN ENGLISH
http s://www.crcpress.com/Handbook-of-Lubrication-and-Tribology-Volume-II-Theory-and- Design-Second/Bruce/p/book/9781420069082

The effect of coating characteristics on the coating performance of a-C:H and ta-C films

Authors: Ronkainen, Helena; Holmberg, Kenneth; Laukkanen, Anssi; Andersson, Tom; Kano, M.; Horiuchi, T.; Wakabayashi, T.; Suzuki, T.; Kumagai, M.; Taki, M.
15th Nordic Symposium on Tribology, NORDTRIB 2012, 12 - 15 June 2012, Trondheim. Norway
Proceedings. The Norwegian University of Science and Technology, SINTEF Materials and Chemistry (2012), 6 p.
Keywords: DLC, ta-C, a-C:H, tribology, modelling, ProperTune
IN ENGLISH

The effect of coating properties on the performance of a-C:H and ta-C films

Authors: Ronkainen, Helena; Holmberg, Kenneth; Laukkanen, Anssi; Andersson, Tom; Kano, M.; Horiuchi, T.; Suzuki, T.
Tribologia . Vol. 31 (2012) No: 3-4, 3-10
Keywords: A-C:H, DLC, modelling, Ta-C, tribology, ProperTune
IN ENGLISH
http://journal.fi/tribologia/issue/view/3256/15

Optimizing NiCr thermal spray coating with process map methodology for high temperature power plant boiler application

Authors: Oksa, Maria; Varis, Tommi; Suhonen, Tomi; Jokipii, Mika
International Thermal Spray Conference, ITSC 2012, 21 - 24 May 2012, Houston, USA
Proceedings. ASM International (2012), 81-86
Keywords: ProperTune
IN ENGLISH

Finite element simulation of the hygro-thermal response of wood during surface densification

Authors: Genoese, Andrea; Genoese, Alessandra; Fortino, Stefania; Rautkari, Lauri
European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2012, 10 - 14 September 2012, Vienna, Austria
e-Book Full Papers (2012), 8902-8911
Keywords: wood surface densification, multiphase models, FEM, ProperTune
IN ENGLISH

A simple approach for FEM simulation of Mode I cohesive crack growth in glued laminated timber under short-term loading

Authors: Fortino, Stefania; Zagari, Giuseppe; Mendicino, Antonio Lorenzo; Dill-Langer, Gerhard
Rakenteiden Mekaniikka (Journal of Structural Mechanics). Vol. 45 (2012) No: 1, 1-20
Keywords: Glulam, mode I fracture, wedge-splitting specimen, modified DCB specimen, wooden bond-lines, crack-growth, cohesive elements, FEM, Abaqus code, ProperTune
IN ENGLISH
http://rmseura.tkk.fi/rmlehti/2012/nro1/RakMek_45_1_2012_1.pdf

Influence of weld undermatching strength (mis-match) on limit load and failure behavior of strain hardened austenitic stainless steel

Authors: Nevasmaa, Pekka; Laukkanen, Anssi; Sirén, Mika
7th European Stainless Steel Conference - Science and Market ESSC7, Como, Italy 21 - 23.9.2011, Paper No 33 (CD-ROM). AIM - Assosiazione Italiana di Metallurgia  (2011)
Keywords: mis-match, welding, structural integrity, austenitic stainless steel, fitness-for-service, failure assessment diagram, ProperTune
IN ENGLISH

Pulsed Electric Current Sintering of the Al2O3 - 15wt% ZrO2 Nanocomposites with 3 wt% of Different Solid Lubricants

Authors: Cura, M. Erkin; Kim, Seung-Ho; Cho, Sung-Hun; Suhonen, Tomi; Muukkonen, Tatu; Vaajoki, Antti; Söderberg, Outi; Kanerva, Ulla; Lee, Soo Wohn; Hannula, Simo-Pekka
Materials Science Forum. Scientific.Net . Vol. 695 (2011), 473 - 476
Keywords: nanocomposite, pulsed electric current sintering, solid lubricants, ProperTune
IN ENGLISH
DOI: 10.4028/www.scientific.net/MSF.695.473

Moisture-induced stresses perpendicular to grain in cross-sections of timber members exposed to different climates

Authors: Fragiacomo, M.; Fortino, Stefania; Tononi, D.; Usardi, I.; Toratti, Tomi
Engineering Structures . Elsevier. Vol. 33  (2011) No: 11, 3071-3078
Keywords: Abaqus code, climatic zones, finite element analyses, moisture-induced stresses, timber structures, ProperTune
IN ENGLISH
DOI: 10.1016/j.engstruct.2011.06.018

NMR imaging study and multi-Fickian numerical simulation of moisture transfer in Norway spruce samples

Authors: Dvinskikh, Sergey V.; Henriksson, Marielle; Mendicino, Antonio Lorenzo; Fortino, Stefania; Toratti, Tomi
Engineering Structures . Elsevier. Vol. 33 (2011) No: 11, 3079-3086
Keywords: Bound water, diffusion, FEM, moisture transport in wood, Mult-Fickian models, nuclear magnetig resonance (NMR) imaging, ProperTune
IN ENGLISH
DOI: 10.1016/j.engstruct.2011.04.011

Fracture Assessment of Reactor Circuit (FRAS). Advanced numerical fracture assessment methods

Authors: Laukkanen, Anssi; Kuutti, Juha; Andersson, Tom; Karjalainen-Roikonen, Päivi
In: SAFIR2010. The Finnish Research Programme on Safety 2007-2010. Final Report
VTT Research Notes : 2571
VTT , Espoo, 2011, 430-439
Keywords: ProperTune
IN ENGLISH
http://www.vtt.fi/inf/pdf/tiedotteet/2011/T2571.pdf

Cohesive Zone Modeling of Initiation and Propagation of Multiple Cracks in Hard Thin Surface Coatings

Authors: Laukkanen, Anssi; Holmberg, Kenneth; Ronkainen, Helena; Wallin, Kim
Journal of ASTM International (JAI). ASTM. Vol. 8  (2011) No: 1, 1-21
Keywords: coatings, cohesive zone modeling, finite element method, fracture toughness, tribology, ProperTune
IN ENGLISH
DOI: 10.1520/JAI102525

Pulsed electric current sintering of TiC-Ultimet powders and effect of binder content on microstructure and mechanical properties

Authors: Cura, M.E.; Ritasalo, R.; Kanerva, Ulla; Syrén, J.; Oksanen, J.; Lotta, J.; Suhonen, Tomi; Lagerbom, Juha; Söderberg, O.; Turunen, Erja; Hannula, S-P.
World PM2010 Congress & Exhibition, 10 - 14 October 2010, Firenze
Proceedings. EPMA (2010)
Keywords: cast bonding, SHS, TIC, coatings, wear, ProperPart, ProperTune
IN ENGLISH
https://www.epma.com/world-pm2010-proceedings/419-world-pm2010-pm-tool-materials

Nano-sized and sub-micron carbide powders for thermal spraying

Authors: Kanerva, Ulla; Oksanen, J.; Suhonen, Tomi; Varis, Tommi; Liu, X.W.; Ge, Y.; Ritvonen, Tapio; Söderberg, O.; Turunen, Erja; Hannula, S-P.
World PM2010 Congress & Exhibition, 10 - 14 October 2010, Firenze
Proceedings. EPMA (2010)
Keywords: spray drying, CJS-spraying, nanocarbide, ProperPart, ProperTune
IN ENGLISH
https://www.epma.com/world-pm2 010-proceedings/421-world-pm2010-powder-manufacturing-and-processing

Thermomechanical model for NiTi shape memory wires

Authors: Frost, M.; Sedlák, M.; Sittner, P.
Smart Materials and Structures. IOP Publishing. Vol. 19 (2010) No: 9 , 094010
Keywords: ProperTune
IN ENGLISH
DOI: 10.1088/0964-1726/19/9/094010

A three-dimensional moisture-stress FEM analysis for timber structures

Authors: Fortino, Stefania; Toratti, Tomi
11th World Conference on Timber Engineering, WCTE 2010, Riva del Garda, Italy, June 20-24, 2010
Proceedings. WCTE. Italy (2010), 8 p.
Keywords: timber connections, moisture transfer, creep, mechanosorption, stress analysis, FEM, Abaqus, ProperTune
IN ENGLISH

Stress analysis of timber structures under variable humidity conditions by using a multi-Fickian moisture transfer model

Authors: Fortino, Stefania; Toratti, Tomi; Mendicino, Lorenzo, A.
1st International Conference on Structures & Architecture (ICSA2010), Guimaraes, Portugal, July 21-23, 2010
Structures and Architecture.  Paulo J. da Sousa Cruz Ed. - CRC Press, 2010 Taylor & Francis Group, London . London (2010), 452-459
Keywords: timber structures, moisture transfer, multi-Fickian, stress analysis, Abaqus, ProperTune
IN ENGLISH

Modelling the hygrothermal stress in curved glulam beams

Authors: Zhou, Huazhang; Zhu, Enchun; Fortino, Stefania; Toratti, Tomi
Journal of Strain Analysis for Engineering Design. Vol. 45 (2010), 129-140
Keywords: wood, glulam, hygrothermal stress, creep, mechano-sorption, moisture and heat transfer, finite element, ProperTune
IN ENGLISH
DOI: 10.1243/03093247JSA563

Friction science saves energy

Authors: Holmberg, Kenneth
VTT Impulse. VTT (2009)  No: 2, 18-25
Keywords: ProperTune
IN ENGLISH

Behavior of HVOF WC-10Co4Cr Coatings with Different Carbide Size in Fine and Coarse Particle Abrasion

Authors: Ghabchi, Arash; Varis, Tommi; Turunen, Erja; Suhonen, Tomi; Liu, Xuwen; Hannula, Simo-Pekka
International Thermal Spray Conference, 4 - 7 May 2009, Las Vegas, Nevada, USA
Proceedings (2009), 415-419
Keywords: HVOF, rubber wheel abrasion test, WC-CoCr, wear mechanism, functional surfaces, tribology, ProperTune
IN ENGLISH

Coatings Tribology - Properties, Mechanisms, Techniques and Applications in Surface Engineering

Authors: Holmberg, Kenneth; Matthews, Allan
Tribology and Interface Engineering Series : 56
Elsevier, 2009. 560 p.
Keywords: tribology, coatings, surface engineering, ProperTune
IN ENGLISH
http://www.elsevierdirect.com/product.jsp?isbn=9780444527509

Behavior of HVOF WC-10Co4Cr Coatings with Different Carbide Size in Fine and Coarse Particle Abrasion

Authors: Ghabchi, Arash; Varis, Tommi; Turunen, Erja; Suhonen, Tomi; Liu, Xuwen; Hannula, S-P.
Journal of Thermal Spray Technology. ASM International. Vol. 19 (2009) No: 1-2, 368-377
Keywords: HVOF, rubber wheel abrasion test, WC-CoCr, wear mechanism, ProperTune
DOI: 10.1007/s11666-009-9433-z

Modeling and verification of creep strain and exhaustion in a welded steam mixer

Authors: Holmström, Stefan; Rantala, Juhani; Laukkanen, Anssi; Kolari, Kari; Keinänen, Heikki; Lehtinen, Olli
Journal of Pressure Vessel Technology. Vol. 131 (2009) No: 6, 061405, 5 p.
Keywords: ProperTune
IN ENGLISH
DOI: 10.1115/1.4000201

The effect of microstructure on mechanical properties of HVOF sprayed WC-CoCr composite coatings

Authors: Suhonen, Tomi; Varis, Tommi; Turunen, Erja; Liu, X.; Ge, Y.; Söderberg, O.; Hannula, S.-P.
Tribologia. The Finnish Society for Tribology. Vol. 28 (2009) No: 1 - 2, 14 - 28
Keywords: ProperTune
IN ENGLISH
http://journal.fi/tribologia/issue/view/3261/25

Friction science saves energy

Authors: Holmberg, Kenneth
Tribologia. Suomen Tribologiayhdistys - The Finnish Society for Tribology. Vol. 28 ( 2009) No: 3-4, 16-25
Keywords: ProperTune
IN ENGLISH
http://journal.fi/tribologia/issue/view/3260/23

Computer modelling and simulation approach to developing wear resistant materials

Authors: Holmberg, Kenneth; Turunen, Erja; Ronkainen, Helena; Laukkanen, Anssi; Wallin, Kim
Tribologia. Suomen Tribologiayhdistys - The Finnish Society for Tribology. Vol. 28 (2009) No:  3-4, 38-43
Keywords: ProperTune
IN FINNISH
http://journal.fi/tribologia/issue/view/3260/23

A 3D moisture-stress FEM analysis for time dependent problems in timber structures

Authors: Fortino, Stefania; Mirianon, F.; Toratti, Tomi
Mechanics of Time-Dependent Materials. Springer. Vol. 13 ( 2009), 333-356
Keywords: Abaqus code, Creep models, Moisture induced stresses, Timber structures, ProperTune
IN ENGLISH
DOI: 10.1007/s11043-009-9103-z

Residual stresses in TiN, DLC and MoS2 coated surfaces with regard to their tribological fracture behaviour

Authors: Holmberg, Kenneth; Ronkainen, Helena; Laukkanen, Anssi,; Wallin, Kim; Hogmark, Sture; Jacobson, Staffan; Wiklund, Urban; Souza, Roberto M.; Ståhle, Per
Wear. Vol. 267 (2009) No: 12,  2142 - 2156
Keywords: Coatings, Residual stresses, TiN, DLC, MoS2, FEM modelling, ProperTune
IN ENGLISH
DOI: 10.1016/j.wear.2009.01.004

Finding critical damage locations by lambda-filtering in finite-element modelling of a girth weld

Authors: Holmström, Stefan; Laukkanen, Anssi; Calonius, Kim
Materials Science and Engineering: A. Elsevier. Vol. 510 - 511  (2009), 224 - 228
Keywords: Constraint, Creep damage, FEA, Modelling, Welds, ProperTune
IN ENGLISH
DOI: 10.1016/j.msea.2008.04.107

Shape Control of a FRP Airfoil Structure Using SMA-actuators and Optical Fiber Sensors

Authors: Ruotsalainen, Pasi; Kroneld, Petter; Nevala, Kalervo; Brander, Timo; Lindroos, Tomi; Sippola, Merja
Solid State Phemomena.  Scientific.Net. Vol. 144 (2009), 196 - 201
Keywords: shape memory alloy, optical fiber sensors, shape control, FRP composite, ProperTune
IN ENGLISH
DOI: 10.4028/www.scientific.net/SSP.144.196

Surface stresses in coated steel surfaces-influence of a bond layer on surface fracture

Authors: Holmberg, Kenneth; Laukkanen, Anssi; Ronkainen, Helena; Wallin, Kim
Tribology International. Vol. 42 (2009)  No: 1, 137 - 148
Keywords: Hard coating, Finite-element method model, Coating adhesion, ProperTune
IN ENGLISH
DOI: 10.1016/j.triboint.2008.04.013

Modeling and verification of creep strain and exhaustion in a welded steam mixer

Authors: Holmström, Stefan; Laukkanen, Anssi; Rantala, Juhani; Kolari, Kari; Keinänen, Heikki; Lehtinen, O.
ASME Pressure Vessels and Piping Conference, PVP 2008, 27 - 31 July 2008, Chicago, Illinois, USA
Proceedings, Volume 7: Operations, Applications and Components. ASME (2008), 505-510
Keywords: creep, modeling, steam, ProperTune
IN ENGLISH
DOI: 10.1115/PVP2008-61028

New developments of the Wallin, Saario, Törrönen cleavage fracture model

Authors: Wallin, Kim; Laukkanen, Anssi
Engineering Fracture Mechanics. Vol. 75 (2008) No: 11, 3367 - 3377
Keywords: Carbides, Cleavage fracture, Local approach, Statistical, ProperTune
IN ENGLISH
DOI: 10.1016/j.engfracmech.2007.07.018

Tribological analysis of TiN and DLC coated contacts by 3D FEM modelling and stress simulation

Authors: Holmberg, Kenneth; Ronkainen, Helena; Laukkanen, Anssi; Wallin, Kim; Erdemir, Ali; Eryilmaz, Osman
Wear. Vol. 264 ( 2008) No: 9 - 10, 877 - 884
Keywords: Coating, FEM analysis, TiN, DLC, ProperTune
IN ENGLISH
DOI: 10.1016/j.wear.2006.12.084

Effect of Stress on Ultrasonic Response in Detection and Sizing of Cracks

Authors: Pitkänen, J.; Laukkanen, Anssi; Kemppainen, M.; Virkkunen, I.
Materials Testing. Carl Hanser Verlag. Vol. 49 (2007)  No: 6, 299-309
Keywords: ProperTune
IN ENGLISH
DOI: 10.3139/120.100815

Friction and wear of coated surfaces scales, modelling and simulation of tribomechanisms

Authors: Holmberg, Kenneth; Ronkainen, Helena; Laukkanen, Anssi; Wallin, Kim
Surface and Coatings Technology. Vol. 202 (2007)  No: 4 - 7, 1034 - 1049
Keywords: tribology, coatings, modelling, scale effects, diamond, diamong-like carbon (DLC), ProperTune
IN ENGLISH
DOI: 10.1016/j.surfcoat.2007.07.105

Friction in a coated surface deformed by a sliding sphere

Authors: Ronkainen, Helena; Laukkanen, Anssi; Holmberg, Kenneth
Wear. Elsevier. Vol. 263 (2007) No: 7 - 12,  1315 - 1323
Keywords: Friction, Adhesive, Ploughing, DLC, TiN, FEM modelling, ProperTune
IN ENGLISH
DOI: 10.1016/j.wear.2007.01.103

Visualising creep exhaustion in a P22 girth weld

Authors: Holmström, Stefan; Laukkanen, Anssi; Calonius, Kim
BALTICA VII. Life Management and Maintenance for Power Plants. Vol. 2
VTT Symposium : 247
VTT, Espoo, 2007, 208-221
Keywords: ProperTune
IN ENGLISH
http://www.vtt.fi/inf/pdf/symposiums/2007/s247.pdf

Characteristics relevant to ductile failure of bimetallic welds and evaluation of transferability of fracture properties

Authors: Laukkanen, Anssi; Nevasmaa, Pekka; Ehrnstén, Ulla; Rintamaa, Rauno
Nuclear Engineering and Design . Elsevier . Vol. 237 (2007) No: 1, 1 - 15
Keywords: welding, welds, bimetallic welds, failure, failure analysis, failure mechanisms, ProperTune
IN ENGLISH
DOI: 10.1016/j.nucengdes.2006.03.022

Tribological analysis of TiN and DLC coated contacts by 3D FEM stress modelling and fracture toughness determination

Authors: Holmberg, Kenneth; Laukkanen, Anssi; Ronkainen, Helena
12th Nordic Symposium on Tribology, Nordtrib 2006, 7 - 9 June 2006, Helsingør, Denmark
Proceedings. Technical University of Denmark (DTU) (2006) , 14 p.
Keywords: coating, FEM analysis, TiN, DLC, ProperTune
IN ENGLISH

Coated surface design by modelling and simulation

Authors: Ronkainen, Helena; Holmberg, Kenneth; Laukkanen, Anssi
3rd Mikkeli International Industrial Coating Seminar, MIICS 2006, 16 - 18 March, 2006, Mikkeli, Finland
Proceedings (2006), 13 p.
Keywords: ProperTune
http://www.miics.net/archive/getfile.php?file=68

Tribological analysis of TiN and DLC coated contacts by 3D FEM stress modeling and fracture toughness determination

Authors: Holmberg, Kenneth; Ronkainen, Helena; Laukkanen, Anssi; Wallin, Kim; Koskinen, Jari
In: Applied Material Research at VTT
VTT Symposium : 244
VTT, 2006, 311-328
Keywords: ProperTune
IN ENGLISH
http://www.vtt.fi/inf/pdf/symposiums/2006/S244.pdf

Aspects of cleavage fracture initiation - relative influence of stress and strain

Authors: Wallin, Kim; Laukkanen, Anssi
Fatigue & Fracture of Engineering Materials & Structures. Blackwell Publishing Ltd. . Vol. 29 (2006) No: 9 - 10, 788 - 798
Keywords: cleavage fracture, fracture, fracture mechanics, fatigue stress, stress, strain, ProperTune
IN ENGLISH
DOI: 10.1111/j.1460-2695.2006.01005.x

Tribological contact analysis of a rigid ball sliding on a hard coated surface. Part II: Material deformations, influence of coating thickness and Young's modulus

Authors: Holmberg, Kenneth; Laukkanen, Anssi; Ronkainen, Helena; Wallin, Kim; Varjus, Simo; Koskinen, Jari
Surface and Coatings Technology . Elsevier. Vol. 200 (2006) No: 12 - 13, 3810 - 3823
Keywords: surface coatings, FEM modelling, deformations, scratch tester, coating thickness, Young's modulus, ProperTune
IN ENGLISH
DOI: 10.1016/j.surfcoat.2005.03.041

Tribological contact analysis of a rigid ball sliding on a hard coated surface. Part I: Modelling stresses and strains

Authors: Holmberg, Kenneth; Laukkanen, Anssi; Ronkainen, Helena; Wallin, Kim; Varjus, Simo; Koskinen, Jari
Surface and Coatings Technology . Elsevier. Vol. 200 (2006) No: 12 - 13, 3793 -3809
Keywords: surface engineering, coatings, FEM modelling, stress simulation, fracture, scratch tester, ProperTune
IN ENGLISH
DOI: 10.1016/j.surfcoat.2005.03.040

Tribological contact analysis of a rigid ball sliding on a hard coated surface, Part III: Fracture toughness calculation and influence of residual stresses

Authors: Laukkanen, Anssi; Holmberg, Henrik; Koskinen, Jari; Ronkainen, Helena; Wallin, Kim; Varjus, Simo
Surface and Coatings Technology . Elsevier. Vol. 200 (2006) No: 12 - 13, 3824 - 3844
Keywords: surface coatings, stress modelling, fracture, scratch tester, fracture toughness, residual stresses, ProperTune
IN ENGLISH
DOI: 10.1016/j.surfcoat.2005.03.042

Assessment of Hydrogen Cracking Risk in Multipass Weld Metal of 2.25cr-1Mo-0.25V-TiB (T24) Boiler Steel

Authors: Nevasmaa, P.; Laukkanen, A.
Progress Reports  : Volume 60 No. 07-08 2005
The Welding Research Council, Inc. , 2005, 29-42
Keywords: ProperTune
IN ENGLISH
https://forengineers.org/bulletin/progress-reports-volume-60-no-07-08-2005

Tribological analysis of fracture conditions in thin surface coatings by 3D FEM modelling and stress simulations

Authors: Holmberg, Kenneth; Laukkanen, Anssi; Ronkainen, Helena; Wallin, Kim
Tribology International. Elsevier. Vol. 38 ( 2005) No: 11-12, 1035-1049
Keywords: Thin coating, Fracture, Scratch test, Stress modelling, Finite-element method, Fracture toughness, ProperTune
IN ENGLISH
DOI: 10.1016/j.triboint.2005.07.028

Optimizing coated contacts by 3D FEM stress modelling and fracture toughness determination

Authors: Holmberg, Kenneth; Laukkanen, Anssi; Ronkainen, Helena; Wallin, Kim; Koskinen, Jari
World Tribology Congress III, WTC 2005, 12 - 16 September 2005, Washington, D.C., USA
Proceedings, Volume 2. ASME  (2005), 295-296
Keywords: stress, finite element methods, modeling, finite element model, fracture toughness, ProperTune
IN ENGLISH
DOI: 10.1115/WTC2005-64137

Assessment of hydrogen cracking risk in multipass weld metal of 2.25Cr-1Mo-0.25V-TiB(T24) boiler steel

Authors: Nevasmaa, Pekka; Laukkanen, Anssi
Welding in the World . Springer. Vol. 49 (2005) No: 7-8, 45-58
Keywords: ProperTune
IN ENGLISH
DOI: 10.1007/BF03263423

A novel method for fracture toughness assessment of inhomogeneous ferritic steel weldments using bimodal master curve analysis

Authors: Nevasmaa, Pekka; Laukkanen, Anssi; Planman, Tapio; Wallin, Kim
11th International Conference on Fracture, IFC11, 20 - 25 March 2005, Turin, Italy
Proceedings, Volume 8. The European Structural Integrity Society (ESIS) (2005), 5777-5782
Keywords: ProperTune
IN ENGLISH
http://www.gruppofrattura.it/ocs/index.php/ICF/ICF11/paper/viewFile/10129/9511

Recent Advances in Master Curve Technology

Authors: Wallin, Kim; Laukkanen, Anssi; Nevasmaa, Pekka; Planman, Tapio
11th International Conference on Fracture, IFC11, 20 - 25 March 2005, Turin, Italy
Proceedings, Volume 6. The European Structural Integrity Society (ESIS) (2005), 4211-4216
Keywords: ProperTune
IN ENGLISH
http://www.gruppofrattura.it/ocs/index.php/ICF/ICF11/paper/viewFile/9855/9268

Joint characterisation for repair brazing of superalloys

Authors: Heikinheimo, Liisa; Laukkanen, Anssi; Veivo, Juha
Welding in the World. Springer. Vol. 49 (2005)  No: 5 - 6, 5 - 12
Keywords: ProperTune
IN ENGLISH
DOI: 10.1007/BF03263404

Tribological performance of coated surfaces

Authors: Holmberg, Kenneth; Laukkanen, Anssi
14th Congress of the International Federation for Heat Treatment and Surface Engineering, 14IFHTSE, 26 - 28 October 2004, Shanghai, China
 (2004)
Keywords: ProperTune
IN ENGLISH

Tribological performance of coated surfaces

Authors: Holmberg, Kenneth; Laukkanen, Anssi
Transactions of Materials and Heat Treatment. Vol. 25 (2004) No: 5 , 20-27
Keywords: hard coatings, FEM modelling, stress simulation, coating fracture, ProperTune
IN ENGLISH
http://caod.oriprobe.com/articles/77966 70/Tribological_Performance_of_Coated_Surfaces.htm

Performance of TMCP steel with respect to mechanical properties after cold forming and post-forming heat treatment

Authors: Porter, David; Laukkanen, Anssi; Nevasmaa, Pekka; Rahka, Klaus; Wallin, Kim
International Journal of Pressure Vessels and Piping . Vol. 81 (2004) No: 10 - 11, 867 - 877
Keywords: dished ends, cold forming, heat treatment, ProperTune
IN ENGLISH
DOI: 10.1016/j.ijpvp.2004.07.006

Coating fracture measurement by scratch test modelling

Authors: Holmberg, Kenneth; Laukkanen, Anssi; Ronkainen, Helena; Wallin, Kim; Varjus, Simo
2nd Mikkeli International Industrial Coating Seminar, MIICS 2004, 18 - 20 March 2004, Mikkeli
. Mikkeli Polytechnic, Lappeenranta University of Technology and Savcor Coatings Oy (2004), 6 p.
Keywords: surface engineering, coatings, fracture, stress modelling, scratch test, fracture toughness, ProperTune
IN ENGLISH

Potentiality of functional materials in smart structures made of fiber reinforced plastics

Original title: Funktionaalisten materiaalien mahdollisuudet lujitemuovisessa toimirakenteessa
Authors: Sippola, Merja; Brander, Timo; Calonius, Kim; Kantola, Lauri; Karjalainen, Jukka-Pekka; Kortelainen, Juha; Lehtonen, Mikko; Söderström, Patrik; Timperi, Antti; Vessonen, Ismo
VTT Tiedotteita - Research Notes  : 2250
VTT Tuotteet ja tuotanto, 2004. 216 s.
Keywords: smart materials, smart structures, adaptive structures, composite structures, fiber reinforcement, polymers, shape memory alloys, piezoelectric materials, magnetorheological materials, sensors, ProperTune
IN FINNISH

Evaluation of weld metal hydrogen cracking risk in a 2.25Cr-1Mo-0.25V-TiB (T24) boiler steel

Authors: Nevasmaa, Pekka; Laukkanen, Anssi; Häkkilä, Juha
BALTICA VI. Life Management and Maintenance for P ower Plants. Vol. 2
VTT Symposium : 234
VTT Industrial Systems, 2004, 393-407
Keywords: ProperTune
IN ENGLISH
http://www.vtt.fi/inf/pdf/symposiums/2004/S234.pdf

Constitutive modeling of hydrogen cracking

Authors: Laukkanen, Anssi; Nevasmaa, Pekka
BALTICA VI. Life Management and Maintenance for Power Plants. Vol. 2
VTT Symposium  : 234
VTT Industrial Systems, Espoo, 2004, 419-429
Keywords: ProperTune
IN ENGLISH
http://www.vtt.fi/inf/pdf/symposiums/2004/s234.pdf

Master Curve analysis of inhomogeneous ferritic steels

Authors: Wallin, Kim; Nevasmaa, Pekka; Laukkanen, Anssi; Planman, Tapio
Engineering Fracture Mechanics. Vol. 71 (2004)  No: 16 - 17, 2329 - 2346
Keywords: Master Curve, ferritic steels, inhomogeneity, brittle fracture, statistical analysis, fracture toughness, heat affected zones, weld, ProperTune
IN ENGLISH
DOI: 10.1016/j.engfracmech.2004.01.010

Improved crack growth corrections for J-R-curve testing

Authors: Wallin, Kim; Laukkanen, Anssi
Engineering Fracture Mechanics. Vol. 71 (2004) No: 11, 1601 - 1614
Keywords: crack growth, crack growth rate, fatique, ProperTune
IN ENGLISH
DOI: 10.1016/S0013-7944(03)00165-6

Fracture mechanical evaluation of a thin film scratch test by use of numerical contact analysis

Authors: Holmberg, Kenneth; Laukkanen, Anssi; Wallin, Kim; Ronkainen, Helena; Varjus, Simo
9th International Conference on the Mechanical Behaviour of Materials, ICM9, 25 - 29 May 2003, Geneva, Switzerland
 (2003), 8 p.
Keywords: hard coatings, FEM modelling, stress simulation, coating fracture, fracture toughness, ProperTune
IN ENGLISH

Fracture toughness transferability study between the master curve method and a pressure vessel nozzle using local approach

Authors: Laukkanen, Anssi; Nevasmaa, Pekka; Keinänen, Heikki; Wallin, Kim
ASME Pressure Vessels and Piping Conference, PVP 2003, 20 - 24 July 2003, Cleveland, Ohio, USA
. ASME (2003), 155-164
Keywords: pressure vessels, nozzles, fracture toughness, ProperTune
IN ENGLISH
DOI: 10.1115/PVP2003-2019

Risk informed plant life management - application of the Master-Curve approach for hydrotreating reactors in an oil refinery

Authors: Wallin, Kim; Laukkanen, Anssi; Nevasmaa, Pekka
Plant Life Management. Progress for structural integrity
VTT Symposium  : 227
VTT Industrial Systems, 2003, 343-355
Keywords: ProperTune
IN ENGLISH
http://www.vtt.fi/inf/pdf/symposiums/2003/S227.pdf

A model for stresses, crack generation and fracture toughness calculation in scratched TiN-coated steel surfaces

Authors: Holmberg, Kenneth; Laukkanen, Anssi; Ronkainen, Helena; Wallin, Kim; Varjus, Simo
Wear. Elsevier. Vol. 254 (2003 ) No: 3 - 4, 278 - 291
Keywords: surface engineering, coatings, stress modelling, fracture, scratch test, fracture toughness, ProperTune
IN ENGLISH
DOI: 10.1016/S0043-1648(02)00297-1

Properties of copper--stainless steel HIP joints before and after neutron irradiation

Authors: Tähtinen, Seppo; Laukkanen, Anssi; Singh, B.N.; Toft, P.
Journal of Nuclear Materials. Vol. 307 - 311 (2002),  1547 - 1553
Keywords: ITER, fusion energy, fusion reactors, irradiation, irradiation embrittlement, copper, copper alloys, hot isostatic pressing, ProperTune
IN ENGLISH
DOI: 10.1016/S0022-3115(02)01072-3

A fracture mechanics interpretation of the DNV brittle fracture criteria for ships and mobile offshore units

Authors: Wallin, Kim; Nevasmaa, Pekka; Laukkanen, Anssi
Fatigue & Fracture of Engineering Materials & Structures . Vol. 25 (2002)  No: 11, 1033 - 1043
Keywords: brittle fracture, charpy-V criteria, correlation, fracture mechanics, ship steels, ProperTune
IN ENGLISH
DOI: 10.1046/j.1460-2695.2002.00578.x

Examination on fracture resistance of F82H steel and performance of small specimens in transition and ductile regimes

Authors: Wallin, Kim; Laukkanen, Anssi; Tähtinen, Seppo
Small specimen test techniques, 23 - 25 January 2000, Reno, Nevada, Usa
ASTM Special Technical Publication : STP 1418
ASTM International,  2002, 33-47
Keywords: brittle fracture, ductile fracture, miniature specimens, local approach, ProperTune
IN ENGLISH
DOI: 10.1520/STP10812S

Investigations of copper to stainless steel joints

Authors: Tähtinen, Seppo; Laukkanen, Anssi; Singh, B.N.
Fusion Engineering and Design. Elsevier. Vol. 56-57 (2001),  391 - 396
Keywords: Hot isostatic pressing (HIP), Copper alloys, Stainless steel, ProperTune
IN ENGLISH
DOI: 10.1016/S0920-3796(01)00338-6

Failure types and integrity management of bimetallic weldment in view of engineering critical assessment

Authors: Laukkanen, Anssi; Nevasmaa, Pekka; Ehrnstèn, Ulla; Talja, Heli; Wallin, Kim; Rintamaa, Rauno
ASME Pressure Vessel and Piping Conference: Pressure Vessel Technology in the New Millenium, PVP 2001, 22 - 26 July 2001, Atlanta, USA
. ASME. Vol. 423 (2001),  107 - 115
Keywords: ProperTune
IN ENGLISH

Analysis of experimental factors in elastic-plastic small specimen mixed-mode I-II fracture mechanical testing

Authors: Laukkanen, Anssi
Fatigue & Fracture of Engineering Materials & Structures. The International Journal. Blackwell Science. Vol.  24 (2001) No: 3, 193 - 206
Keywords: ductile fracture, mixed-mode I-II, mode II, toughness testing, ProperTune
IN ENGLISH

Damage mechanisms and fracture toughness of GlidCop CUA125 IG0 copper alloy

Authors: Tähtinen, Seppo; Laukkanen, Anssi; Singh, Bachu
Journal of Nucleal Materials. Elsevier. Vol. 283-287 (2000),  1028 - 1032
Keywords: ProperTune
IN ENGLISH
DOI: 10.1016/S0022-3115(00)00201-4

The engineering treatment model and comparison to R6 revision 3

Authors: Laukkanen, Anssi
Engineering Fracture Mechanics.  Elsevier. Vol. 67 (2000) No: 4, 365 - 380
Keywords: engineering treatment model, fracture parameter, structural integrity, failure assessment diagram, driving force, ProperTune
IN ENGLISH
DOI: 10.1016/S0013-7944(00)00063-1

Evaluation of the effects of mixed-mode I-II loading on elastic-plastic ductile fracture of metallic materials

Authors: Laukkanen, Anssi; Wallin, Kim; Rintamaa, Rauno
Symposium on Mixed-Mode Crack Behavior, 6 - 7 May 1998, Atlanta, GA, USA
ASTM Special Technical Publication : STP 1359
ASTM, 1999 , 3-20
Keywords: ductile fracture, mixed-mode, Mode I, Mode II, fracture toughness, fractography, shear fracture J-integral, Gurson-Tvergaard model, ProperTune
IN ENGLISH
DOI: 10.1520/STP14240S

Additive manufacturing of spare part supported by digital design concept

Authors: Laitinen, Tarja; Julkunen, P.; Laukkanen, Anssi; Puukko, Pasi; Turunen, Erja
International Conference on Powder Metallurgy and Particulate Materials, PowderMet 2015, 17 - 20 May 2015, San Diego, USA
Advances in Powder Metallurgy & Pariculate Materials, Part 1. Metal Powder Industries Federation
Keywords: ProperTune
IN ENGLISH

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