A critical analysis of the relationship between the energy release rate and the stress intensity factors for non-coplanar crack extension under combined mode loading
✍ Scribed by Masahiro Ichikawa; Sakae Tanaka
- Publisher
- Springer Netherlands
- Year
- 1982
- Tongue
- English
- Weight
- 473 KB
- Volume
- 18
- Category
- Article
- ISSN
- 1573-2673
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✦ Synopsis
A B S T R A C T
A critical analysis was made on the relationship between the energy release rate G and the stress intensity factors for non-coplaner crack extension under combined Mode I, II and III loading. Developing a method different from the application of Bueckner's equation, the equation of G was derived as G = [(K + 1)/8~](/(~, +/(~lb) + (I/2p-)/(~Hb, where /(lb, /(H~ and / ( D are the stress intensity factors at the tip of an infinitesimal kink as formed by non-coplaner crack extension. Among the three existing equations of G which are mutually contradictory, Nuismer's equation and Wang's equation disagree with the present result.
In the case where Mode III loading is not involved, Hussain et al's equation agrees with the present result, although their analysis seems to contain questionable points.