The stress intensity factors for bimaterial interface cracks are determined by the boundary element method employing the multi-region technique and the double-point concept. A formula relating the stress intensity factors to the crack surface displacement, which is applicable to both the homogeneous
Boundary element analysis of cracks normal to bimaterial interfaces
โ Scribed by Y.W. Kwon; R. Dutton
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 338 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0013-7944
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โฆ Synopsis
oo13-7944/91 53.00 + 0.00 F'rinted in Great Britain.
๐ SIMILAR VOLUMES
Zero thickness crack tip interface elements for a crack normal to the interface between two materials are presented. The elements are shown to have the desired r\*-' (0 < I < 1) singularity in the stress field at the crack tip and are compatible with other singular elements. The stiffness matrices o
The quadratic isoparametric crack-tip elements proposed by R. E. Abdi and G. Valentin (Computers and Structures 33, 241}248) are reconsidered and a simpler method for calculating the optimal position of the side nodes proposed. Quadratic isoparametric transition elements for an r !1 (0( (1) strain s
A&dract--The complex stress intensity factor, K = Kt + i&t, which is used to chara~terixe the near tip fields of a bimaterial interface crack may atso be written as K = &ti, aud it has been shown that K, is directly related to the strain energy rele8se rate. An e&ient means of obtaining this quantit