Creep crack growth simulation under transient stress fields
β Scribed by Wilkinson, D. S. ;Biner, S. B.
- Book ID
- 112801018
- Publisher
- The Minerals, Metals & Materials Society
- Year
- 1988
- Tongue
- English
- Weight
- 512 KB
- Volume
- 19
- Category
- Article
- ISSN
- 1543-1916
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π SIMILAR VOLUMES
Two different constitutive models are employed to describe creep crack growth under small-scale creep conditions theoretically. The first model combines elastic/nonlinear viscous deformation fields (8 = (r/E + Aa ~) with a critical-strain criterion, e = e,, to be satisfied at a structural distance x
Linear elastic fracture mechanics predicts a characteristic distribution of tensile stress ahead of a crack tip in a body subjected to a remote tensile stress normal to the crack faces. The relaxation of this stress distribution, arising from steady state creep behatiour, is here examined. An Etppra