Uncertainty of lifetime evaluation for cafe creep damage model

Uncertainty of lifetime evaluation for cafe creep damage model Krzysztof Nowak Politechnika Krakowska, ul. Warszawska 24, 31-155 Kraków, Poland. DOI: https://doi.org/10.7494/cmms.2011.2.0349 Abstract: In the paper the influence of material microstructure randomness upon statistically observed scatter of experimental results on macroscopic level is searched through. It is well known that a lot of random factors influence … Read more

Elasto-plastic material model with damage parameter in metal fatigue

Elasto-plastic material model with damage parameter in metal fatigue Tomasz Bednarek1,2, Włodzimierz Sosnowski1,2, Tomasz Szolc1 1Institute of Fundamental Technological Research of the Polish Academy of Sciences, 02-106 Warszawa, ul. Pawińskiego 5b . 2Kazimierz Wielki University, 85-064 Bydgoszcz, ul. Chodkiewicza 30. DOI: https://doi.org/10.7494/cmms.2009.4.0266 Abstract: In this paper the numerical method for prediction of fatigue life of … Read more

Micro- versus macro- modelling of creep damage

Micro- versus macro- modelling of creep damage Krzysztof Nowak Cracow University of Technology, ul. Warszawska 24, 31-155 Krakow, Poland. DOI: https://doi.org/10.7494/cmms.2009.2.0238 Abstract: In the present paper the continuous approach to model brittle-ductile transition in creep failure phenomenon is replaced by Cellular Automata (CA) model. This allows to back-up this complex phenomenon by relating it to … Read more

Modelling of brittle damage nucleation by means of ca

Modelling of brittle damage nucleation by means of ca Krzysztof Nowak Cracow University of Technology, ul. Warszawska 24, 31-155 Krakow, Poland. DOI: https://doi.org/10.7494/cmms.2007.1.0136 Abstract: The description of damage nucleation in metals subjected to creep conditions, on the level of material structure, is proposed. In classical approach of mechanics it is achieved by introducing scalar (or … Read more