Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7171391 | International Journal of Fatigue | 2018 | 30 Pages |
Abstract
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.
Related Topics
Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
M. Mlikota, S. Schmauder, Ž. BožiÄ,