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 evaluation of stress intensity factors for interface edge cracks in a unidirectional composite
β Scribed by Sang Soon Lee
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 333 KB
- Volume
- 55
- Category
- Article
- ISSN
- 0013-7944
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β¦ Synopsis
The complex stress intensity factors for edge cracks located at the interface between fiber and matrix of a unidirectional graphite/epoxy laminate model subjected to a transverse tensile strain have been computed using the boundary element method. Such cracks might be generated due to a stress singularity in the vicinity of the free surface. The amplitude of complex stress intensity factor depends on the crack length, but it has a constant value at large crack lengths.
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