A semi-infinite-crack model is used to supplement the conic section simulation method for determining stress intensity factors of finite cracked bodies under mode I loadings. The actual displaced crack surface profile is found by finite element analysis. For each crack surface segment between two ne
Elastodynamic stress-intensity factors for a semi-infinite crack under 3-D combined mode loading
โ Scribed by Li Xiang Ping; Liu Chun Tu
- Publisher
- Springer Netherlands
- Year
- 1995
- Tongue
- English
- Weight
- 719 KB
- Volume
- 69
- Category
- Article
- ISSN
- 1573-2673
No coin nor oath required. For personal study only.
โฆ Synopsis
The dynamic stress intensity factor histories for a half plane crack in an otherwise unbounded elastic body are analyzed. The crack is subjected to a traction distribution consisting of two pairs of suddenly-applied shear point loads, at a distance L away from the crack tip. The exact expression for the combined mode stress intensity factors as the function of time and position along the crack edge is obtained. The method of solution is based on the direct application of integral transforms together with the Wiener-Hopf technique and the Cagniardde Hoop method, which were previously believed to be inappropriate. Some features of solutions are discussed and the results are displayed in several figures.
๐ SIMILAR VOLUMES
intensity factors were calculated at the deepest point and at the surface points of longitudinal semi-elliptical surface cracks in a thermally shocked pipe. The method of calculation is based on weight functions following a proposal by Mattheck, Munz and Stamm, Engng. Fract. Mech. 18, 633-641 (1983)
Static three-dimensional stress intensity factors of a semi-infinite plane crack are investigated in this paper. The deformations are caused by a pair of normal and tangential point forces acting on the crack faces but located away from the crack front. Cases of symmetric and anti-symmetric loadings
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## 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