Ah&met-Sib's fracture criterion based on strain energy density, S, for mixed mode crack extension under static loading is extended to dynamic mixed mode, K, and K,,, crack propagation. Influence of the second order term, uox, which represents the non-singular constant stress acting parallel to the d
A strain energy criterion for mixed mode crack propagation
โ Scribed by Zhao Yishu
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 552 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0013-7944
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โฆ Synopsis
The strain energy criterion for crack propagation proposed in the paper is based on the principle that the direction of crack propagation takes place along the direction where the distance from the crack tip to a certain contour line of constant distortional strain energy density is minimum, and the crack will begin to propagate when the total strain energy in the region surrounded by the contour line reaches a critical value. In the paper, predicted was compared with the measured results.
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