A rate-dependent criterion for crack growth
โ Scribed by R. M. Christensen
- Publisher
- Springer Netherlands
- Year
- 1979
- Tongue
- English
- Weight
- 973 KB
- Volume
- 15
- Category
- Article
- ISSN
- 1573-2673
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๐ SIMILAR VOLUMES
This paper investigates the utility of the rate forms of Kishimoto et al.'s integral (J) and Blackbum's integral (J\*) as parameters for correlating time-dependent crack growth rates. These rate integrals are computed from the results of finite element analyses of crack growth in button-head single
A new approach is presented to determine the crack propagation increment after the direction of crack propagation has been predicted. The maximum dilatational strain energy density (NT-criterion) is employed in the derivation for predicting both direction and increment of the propagating crack. The
A critical assessment has been performed by compiling experimental data concerning the temperature dependence of stage If fatigue crack growth. For aluminium alloys, high strength steels, austenitic stainless steels and superalloys, the power coefficient, M, for the Paris reIationship is temperature
An equation is derived for the crack growth rate under creep conditions. In the model, the propagation of a grain boundary crack is controlled by the plastic growth of cavities located in the grain boundaries ahead of the crack. It is assumed that the cavities grow by power law creep in the elastic