A discrete dislocation analysis of near-threshold fatigue crack growth
β Scribed by V.S. Deshpande; A. Needleman; E. Van der Giessen
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 308 KB
- Volume
- 49
- Category
- Article
- ISSN
- 1359-6454
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π SIMILAR VOLUMES
At low crack propagation rate in metals and alloys the discrete nature of plasticity is essential to understand the fatigue phenomena. A short overview of the different types of performed discrete dislocation simulations of cyclically loaded cracks and their essential results are presented. The disc
The influence on the crack growth rate for a short edge crack under fatigue loading due to changes in crack length, grain size, load range and grain boundary configuration, is investigated under quasi-static and plane strain conditions. The geometry is modelled by distributed dislocation dipole elem
## a b s t r a c t In this study, the growth of a short edge crack during more than 14 000 cycles of fatigue loading is investigated in detail. An edge crack, in a semi-infinite body with no pre-existing obstacles present, is modelled in a boundary element approach by a distribution of dislocation