A B S T R A C T Our theory of fatigue crack growth, which is based on the Bilby, Cottrell, and Swinden crack theory, is modified to take into account work hardening at fatigue crack tips. Iii this analysis stress rather than cumulative displacement or cumulative damage is the quantity whose critical
A theory of fatigue crack growth
โ Scribed by N. E. Frost; J. R. Dixon
- Publisher
- Springer Netherlands
- Year
- 1967
- Tongue
- English
- Weight
- 931 KB
- Volume
- 3
- Category
- Article
- ISSN
- 1573-2673
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โฆ Synopsis
Existing experimental data o~.~ fatigue crack growth are summarized. A fatigue crack growth model is proposed, based on the different crack tip geometries of a loaded and unloaded crack; the model leads to predictions of the rates of growth of fatigue cracks, in certain materials, comparable to those determined experimentally.
๐ SIMILAR VOLUMES
Treating the local fracture toughness of a material as a random value, a general relationship between the applied fracture parameter and the stable crack growth distance is developed. The result is applied to a study of the fatigue crack growth and a general expression connecting fatigue crack growt
The Bilby, Cottrell and Swinden crack theory is applied to the problem of the growth of fatigue cracks. It is found that if a total critical displacement is adopted as the fracture criterion, the theory leads to observed growth laws. \* Based upon paper presented at the International Conference on F
The theoretical study is advanced to describe quantitatively the crack propagation under cyclic loads. The main assumptions accepted are: (a) a crack grows by loading during every cycle, and (b) the specific dissipation energy is a material constant. The latter contains. the known concept by Irwin a