Research output per year
Research output per year
Research output
- 1 - 50 out of 53 results
Search results
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2022
Continuum damage model for concrete
Vilppo, J., Kouhia, R., Hartikainen, J., Kolari, K., Fedoroff, A. & Calonius, K., 2022, Proceedings for the 6th fib International Congress, 2022: Concrete Innovation for Sustainability. Stokkeland, S. & Braarud, H. C. (eds.). The International Federation for Structural Concrete (FIB), p. 260-269 10 p. 286399. (fib Symposium Proceedings).Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
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Modelling the effect of concrete cement composition on its strength and failure behavior
Saksala, T., Kolari, K. & Kouhia, R., 2022, In: Rakenteiden Mekaniikka. 55, 3, p. 55-65 11 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open Access -
Poikittaisisotrooppinen lineaarikimmoinen materiaalimalli
Translated title of the contribution :Transverse isotropic linear elastic material model Research output: Contribution to journal › Article › Scientific › peer-review
Open Access -
Strength of Ice in Brittle Regime—Multiscale Modelling Approach
Kolari, K. & Reijo, K., 2022, IUTAM Symposium on Physics and Mechanics of Sea Ice. Polojärvi, A. & Tuhkuri, J. (eds.). Springer, p. 9-30 (IUTAM Bookseries, Vol. 39).Research output: Chapter in Book/Report/Conference proceeding › Chapter or book article › Scientific › peer-review
1 Citation (Scopus) -
2021
Anisotropic damage model for concrete and other quasi-brittle materials
Vilppo, J., Kouhia, R., Hartikainen, J., Kolari, K., Fedoroff, A. & Calonius, K., 15 Aug 2021, In: International Journal of Solids and Structures. 225, 13 p., 111048.Research output: Contribution to journal › Article › Scientific › peer-review
Open Access8 Citations (Scopus) -
2020
Method and system for harnessing energy from moving ice
Heinonen, J., Kolari, K., Makkonen, L. & Tikanmäki, M., 9 Sept 2020, IPC No. F03G 7/ 00 A I, Patent No. EP3704373, Priority date 18 Oct 2018, Priority No. WO2018FI50764Research output: Patent › Patent
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Numerical assessment of the effects of microcrack interaction in AM components
Kuutti, J. & Kolari, K., Nov 2020, In: Computational Materials Science. 184, 109882.Research output: Contribution to journal › Article › Scientific › peer-review
1 Citation (Scopus) -
On the Kachanov-Rabotnov continuum damage model
Askes, H., Hartikainen, J., Kolari, K., Kouhia, R., Saksala, T. & Vilppo, J., 30 Mar 2020, In: Rakenteiden Mekaniikka. 53, 2, p. 125-144 20 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile106 Downloads (Pure) -
2019
Calibration of Abaqus CDP model parameters
Calonius, K., Fedoroff, A., Kolari, K., Reijo, K. & Vilppo, J., Oct 2019, Proceedings of NSCM 32: The 32nd Nordic Seminar on Computational Mechanics . Niemi, A. H. & Koivurova, H. (eds.). Oulu: University of Oulu, p. 51-54 4 p. (University of Oulu: Mechanical Engineering. Report ; No. 9).Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific
Open AccessFile520 Downloads (Pure) -
Modeling Splitting and Spalling of Columnar Ice Compressed Biaxially: The Role of Crack Nucleation
Kolari, K., 25 May 2019, In: Journal of Geophysical Research: Solid Earth. 124, 4, p. 3271-3287 16 p.Research output: Contribution to journal › Article › Scientific › peer-review
4 Citations (Scopus) -
2018
Interaction of periodic arrays of wing cracks
Kuutti, J. & Kolari, K., Sept 2018, In: Engineering Fracture Mechanics. 200, p. 17-30 14 p.Research output: Contribution to journal › Article › Scientific › peer-review
2 Citations (Scopus) -
Modelling structural performance of offshore wind turbine support structures in ice-infested waters by using design load portal
Heinonen, J., Klinge, P., Kolari, K. & Kurkela, J. T., 2018, Book of abstracts of the Tenth International Conference on Engineering Computational Technology, ECT2018.Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Scientific
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2017
A complete three-dimensional continuum model of wing-crack growth in granular brittle solids
Kolari, K., 2017, In: International Journal of Solids and Structures. 115-116, p. 27-42Research output: Contribution to journal › Article › Scientific › peer-review
Open Access34 Citations (Scopus) -
Strain-Rate Softening of Granular Ice in Brittle Regime: Fact or Artifact?
Kolari, K., 2017, Proceedings of the 23rd IAHR International Symposium on Ice. 8 p.Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
Open Access -
2016
Development and numerical implementation of an anisotropic continuum damage model for concrete
Hartikainen, J., Kolari, K. & Reijo, K., 2016, Advances in Fracture and Damage Mechanics XV. Toribio, J., Mantič, V., Sáez, A. & Aliabadi, M. H. F. (eds.). Trans Tech Publications, p. 115-118 (Key Engineering Materials, Vol. 713).Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
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2015
Arktinen Norja-yhteistyö ja visio
Heinonen, J., Kolari, K. & Määttänen, M., 2015, VTT Technical Research Centre of Finland. 45 p. (VTT Tutkimusraportti, Vol. VTT-R-02456-15).Research output: Book/Report › Report
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Simulation of the temperature and grain size dependent uniaxial compressive strength using 3D wing crack model
Kolari, K., 2015, Proceedings of the 23rd International Conference on Port and Ocean Engineering under Arctic Conditions. 13 p. (POAC Proceedings).Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
Open Access2 Citations (Scopus) -
2014
Arktinen osaaminen: Näkökulmia liiketoiminnan kehittämiseen
Auvinen, H., Kolari, K., Koukkari, H., Kuusela-Lahtinen, A., Sassi, J., Törnqvist, J., Wahlgren, I., Alakunnas, T., Karjalainen, A., Ryynänen, K., Vatanen, M. & Vatanen, M., 2014, Espoo: VTT Technical Research Centre of Finland. 242 p. (VTT Technology; No. 206).Research output: Book/Report › Report
Open Access -
2013
Simulation of brittle failure of ice
Kolari, K., 2013, Proceedings of the 22nd International Conference on Port and Ocean Engineering Under Arctic Conditions: POAC 2013. Polojärvi, A. & Tuhkuri, J. (eds.). Espoo: Aalto University, Vol. 2. p. 1036-1047 (POAC Proceedings, Vol. 22). (Aalto University Publication Series Science + Technology; No. 14/2013).Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
Open Access3 Citations (Scopus) -
Simulation of dynamic ice indentation failure
Kuutti, J. & Kolari, K., 2013, Proceedings of the 22nd International Conference on Port and Ocean Engineering under Arctic Conditions: POAC'13. Polojärvi, A. & Tuhkuri, J. (eds.). Espoo: Aalto University, p. 1048-1062 (POAC Proceedings, Vol. 22). (Aalto University Publication Series Science + Technology; No. 14/2013).Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
Open Access1 Citation (Scopus) -
Simulation of ice crushing experiments with cohesive surface methodology
Kuutti, J., Kolari, K. & Marjavaara, P., 2013, In: Cold Regions Science and Technology. 92, p. 17-28Research output: Contribution to journal › Article › Scientific › peer-review
46 Citations (Scopus) -
2012
A Constitutive Model for Strain-rate Dependent Ductile-to-brittle Transition
Hartikainen, J., Kolari, K. & Kouhia, R., 2012, Proceedings of 21st IAHR International Symposium on Ice: Ice Research for a Sustainable Environment. Li, Z. & Lu, P. (eds.). Dalian, China, Vol. 1. p. 24-29Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
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A local remeshing procedure to simulate crack propagation in quasi-brittle materials
Kuutti, J. & Kolari, K., 2012, In: Engineering Computations. 29, 2, p. 125-143 19 p.Research output: Contribution to journal › Article › Scientific › peer-review
18 Citations (Scopus) -
Consolidated Layer Bending Test with and without Underlying Ice Rubble: Experiments and Numerical Simulations
Heinonen, J. & Kolari, K., 2012, Proceedings of 21st IAHR International Symposium on Ice: Ice Research for a Sustainable Environment. Li, Z. & Lu, P. (eds.). Dalian, China, Vol. 1. p. 30-41Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
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2010
FE-simulation of continuous ice failure based on model update technique
Kolari, K., Kuutti, J. & Kurkela, J., 2010, Proceedings of the International Conference on Port and Ocean Engineering under Arctic Conditions, POAC 2009. Curran Associates Inc., Vol. 2. p. 845-854 10 p. (POAC Proceedings).Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
Open Access20 Citations (Scopus) -
Ice-structure indentation tests with variable structural flexibility
Marjavaara, P., Kolari, K., Määttänen, M., Saarinen, S., Laakso, M. & Heinonen, J., 2010, 20th IAHR International Symposium on Ice: 14. - 17. June 2010, Lahti, Finland.Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Scientific
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Numerical simulation of ice loads to Azipod propulsion
Heinonen, J., Kolari, K. & Kurkela, J., 2010, The IAHR 20th International Symposium on Ice: 14-17 June 2010, Lahti, Finland. International Association for Hydro-Environment Engineering and Research (IAHR)Research output: Chapter in Book/Report/Conference proceeding › Conference abstract in proceedings › Scientific
Open Access -
Reply to: "Additional remarks related with the discussion inaugurated by the article 'Incompatibility of the Shuttleworth equation with Hermann's mathematical structure of thermodynamics' by D. J. Bottomley et al. [Surf. Sci. 603 (2009) 97]"
Bottomley, D. J., Makkonen, L. & Kolari, K., 2010, In: Surface Science. 604, 21-22, p. 2066-2068 3 p.Research output: Contribution to journal › Article › Scientific › peer-review
3 Citations (Scopus) -
Reply to: "Comment by P. Hecquet on: Incompatibility of the Shuttleworth equation with Hermann's mathematical structure of thermodynamics" [Surf. Sci. 603 (2009) 97]
Bottomley, D. J., Makkonen, L. & Kolari, K., 2010, In: Surface Science. 604, 3-4, p. 474-475 2 p.Research output: Contribution to journal › Other journal contribution › Scientific
3 Citations (Scopus) -
Simulation of ice crushing experiment using FE-model update technique
Kuutti, J. & Kolari, K., 2010, Proceedings of 20th IAHR International Symposium on Ice . University of Helsinki, Vol. 1. p. 365-376Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
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2009
Incompatibility of the Shuttleworth equation with Hermann's mathematical structure of thermodynamics
Bottomley, D. J., Makkonen, L. & Kolari, K., 2009, In: Surface Science. 603, 1, p. 97-101 5 p.Research output: Contribution to journal › Article › Scientific › peer-review
37 Citations (Scopus) -
Life prediction for a weld repaired steam mixer
Holmström, S., Rantala, J., Kolari, K., Keinänen, H., Laukkanen, A., Veivo, J. & Lehtinen, O., 2009, Proceedings of the 2nd ECCC Creep Conference: Creep & Fracture in High Temperature Components - Design & Life Assessment Issues. Shibli, I. A. & Holdsworth, S. R. (eds.). DEStech Publications Inc., p. 309-319Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
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Modeling and verification of creep strain and exhaustion in a welded steam mixer
Holmström, S., Rantala, J., Laukkanen, A., Kolari, K., Keinänen, H. & Lehtinen, O., 2009, In: Journal of Pressure Vessel Technology. 131, 6, 6 p., 061405.Research output: Contribution to journal › Article › Scientific › peer-review
4 Citations (Scopus) -
Reply to: "Comment by J.C. Eriksson, A.I. Rusanov on: Incompatibility of the Shuttleworth equation with Hermann's mathematical structure of thermodynamics" [Surf.Sci. 603(2009) 97]
Bottomley, D. J., Makkonen, L. & Kolari, K., 2009, In: Surface Science. 603, 15, p. 2350-2351 2 p.Research output: Contribution to journal › Article › Scientific › peer-review
8 Citations (Scopus) -
Reply to: "Comment by V.A. Marichev on: Incompatibility of the Shuttleworth equation with Hermann's mathematical structure of thermodynamics" [Surf.Sci. 603(2009)97]
Bottomley, D. J., Makkonen, L. & Kolari, K., 2009, In: Surface Science. 603, 15, 2347.Research output: Contribution to journal › Article › Scientific › peer-review
11 Citations (Scopus) -
Reply to: "Comment by H. Ibach on Incompatibility of the Shuttleworth equation with Hermann's mathematical structure of thermodynamics" [Surf.Sci. 603(2009) 97]
Bottomley, D. J., Makkonen, L. & Kolari, K., 2009, In: Surface Science. 603, 15, p. 2356-2357 2 p.Research output: Contribution to journal › Article › Scientific › peer-review
8 Citations (Scopus) -
2008
Modelling and verification of creep strain and exhaustion in a welded steam mixer
Holmström, S., Laukkanen, A., Rantala, J., Kolari, K., Keinänen, H. & Lehtinen, O., 2008, Proceedings of the ASME 2008 Pressure Vessels & Piping Conference, PVP 2008. New York, NY: American Society of Mechanical Engineers (ASME), Vol. 7. p. 505-510Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
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2007
Damage mechanics model for brittle failure of transversely isotropic solids. Finite element implementation: Dissertation
Kolari, K., 2007, Espoo: VTT Technical Research Centre of Finland. 210 p.Research output: Thesis › Dissertation › Monograph
Open Access -
2004
Ice failure analysis using strain-softening viscoplastic material model
Kolari, K., Kouhia, R. & Kärnä, T., 2004, Proceedings European Congress on Computational Methods in Applied Sciences and Engineering. Neittanmäki, P., Rossi, T., Majava, K. & Pironneau, O. (eds.). University of Jyväskylä, Vol. 1.Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
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Mitigation of Dynamic Ice Actions on Offshore Wind Turbines
Kärnä, T., Kolari, K. & Heinonen, J., 2004, Proceedings of the Third European Conference on Structural Control. Vienna University of TechnologyResearch output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
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2003
Ice action on compliant structures: Laboratory indentation tests
Kärnä, T., Kolari, K., Jochmann, P., Evers, K-U., Xiangjun, B., Määttänen, M. & Martonen, P., 2003, Espoo: VTT Technical Research Centre of Finland. 125 p. (VTT Tiedotteita - Meddelanden - Research Notes; No. 2223).Research output: Book/Report › Report
Open Access -
Tests on dynamic ice-structure interaction
Kärnä, T., Jochmann, P., Määttänen, M., Evers, K-U., Kolari, K., Xiangjun, B. & Martonen, P., 2003, Proceedings of the ASME 2003 22nd International Conference on Offshore Mechanics and Arctic Engineering: Materials Technology; Ocean Engineering; Polar and Arctic Sciences and Technology; Workshops. American Society of Mechanical Engineers (ASME), Vol. 3. p. 823-829 OMAE2003-37397Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
Open Access13 Citations (Scopus) -
2002
Design tools and new applications of cold formed steel in buildings: Final report
Salmi, P., Kolari, K., Hieta, J., Couchman, G., Cecconi, A., Ristori, F., Salvatore, W., Ioannidis, C., Palamas, J., Ryan, I., Schneider, R., Sedlacek, G., Mononen, T., Toma, A., Brekelmans, J. & van den Brande, E., 2002, Luxembourg: Office for Official Publications of the European Communities. 86 p. (EU Publications; No. EUR 20324 EN).Research output: Book/Report › Report
Open Access -
Ice failure simulation - Softening material model
Kolari, K., Kouhia, R. & Kärnä, T., 2002, Ice in the Environment: Proceedings of the 16th IAHR International Symposium on Ice. University of Otago Press, p. 489-494Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review
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1999
Load-sharing of press-joints in thin-walled steel structures
Kolari, K., 1999, 4th International Conference on Steel and Aluminium Structures: light-weight steel and aluminium structures. Mäkeläinen, P. & Hassinen, P. (eds.). Elsevier, p. 577 - 583Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific
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1997
Kehä- ja sauvarakenteiden epälineaarinen analyysi
Translated title of the contribution :Nonlinear analysis and design of steel frames and trusses Research output: Book/Report › Report
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Palkkisiltojen kantavuuslaskenta
Tirkkonen, T., Hakole, I., Kolari, K. & Huovinen, S., 1997, Helsinki. 128 p. (Tielaitoksen selvityksiä; No. 40/1997).Research output: Book/Report › Report
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1995
Bending and compression tests of cold formed purlins
Kolari, K. & Talja, A., 1995, Nordic Steel Construction Conference '95: Proceedings. Stockholm, Vol. 1. p. 185-192 (SBI Publication, Vol. 150).Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific
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Design of cold-formed beam-columns restrained by sheeting
Kolari, K. & Talja, A., 1995, 3rd International Conference on Steel and Aluminium Structures ICSAS '95: Proceedings. Istanbul, p. 35-42Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific
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Tests and design of cold-formed beam-columns restrained by sheeting
Kolari, K. & Talja, A., 1995, Proceedings of the International Conference on Stability of Structures (ICSS-95). Rajasekaran, S. & Sridharan, S. (eds.). Bombay: Allied publishers group, p. 807-816Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review