✦ LIBER ✦

The quasi-invariant in the theory of interface cracks

✍ Scribed by V.V. Loboda

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 661 KB
Volume: 44
Category: Article
ISSN: 0013-7944
DOI: 10.1016/0013-7944(93)90099-e

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✦ Synopsis

Abatraet-An interface crack model which takes the frictionless contact surfaces near the crack tip is investigated in an analytical manner. An exact solution for the bimaterial plane in the nm~val traction-shear field is obtained for arbitrary contact interval length. The true length which provides a physi~lly correct state of the crack is found. The new combination of stress intensity factors and its ahnost negligible independence on contact interval length are shown. An effective application of the new quasi-invariant to the numerical investigation of the interface probIem is proposed.

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