Calculation of the Wöhler (S-N) curve using a two-scale model (CROSBI ID 252997)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Mlikota, Marijo ; Schmauder, Siegfried ; Božić, Željko
engleski
Calculation of the Wöhler (S-N) curve using a two-scale model
This paper deals with the initiation of a short crack and subsequent growth of the long crack in a type of carbon steel under cyclic loading, concluded with the estimation of the complete lifetime represented by the Wöhler (S-N) curve. A micro-model containing the microstructure of the material was generated by using the Finite Element Method followed by the calculation of respective non-uniform stress distribution. The number of cycles needed for crack initiation was estimated on the basis of the stress distribution in the microstructural model and by applying the physically-based Tanaka-Mura model. The long crack growth was examined by using the Paris law. The analysis yielded good agreement with experimental results from the literature.
multiscale modelling ; fatigue ; crack initiation ; lifetime estimation ; wöhler (s-n) curve
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Podaci o izdanju
114
2018.
289-297
objavljeno
0142-1123
1879-3452
10.1016/j.ijfatigue.2018.03.018