On crack stability in some fracture tests
โ Scribed by Joseph Glucklich
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 906 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0013-7944
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โฆ Synopsis
Generally, cracks that satisfy the energy condition run catastrophically. Three types of exceptions to this rule are described: ( 1) Stability occurs due to increasing rate of energy demand. (1) Stability of a lowet degree (neutral equilibrium) occurs when the energy reiease is independent of the crack length. 13) Stability occurs when the energy release decreases with the increasing crack length. Examples are given ofthe three types of stability and some fracture tests are analyzed from this viewpoint.
๐ SIMILAR VOLUMES
In this paper, two experiments on brittle crack run-arrest behavior using structural steels are briefly described with the analysis based on dynamic fracture mechanics. From the experiment using a modified double-tension specimen, it is shown that the arrestability of brittle crack is very much asso