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Interaction of a moment with a crack tip for the determination of weight functions

โœ Scribed by N.I. Ioakimidis

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
363 KB
Volume
37
Category
Article
ISSN
0013-7944

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โœฆ Synopsis

A new approach is used for the determination of weight functions and the computation of mode I stress intensity factors at crack tips in plane isotropic elasticity problems. This approach consists in assuming a moment (couple of forcea) acting on the crack edges near the crack tip and, next, applying Betti's reciprocal work theorem. In this way, the advantages of the weight function method (over the Green function method) are preserved and, sirn~~n~~~y, an interesting physical in~~~on is given to this method. The problem of the simple straight crack is used for the illustration of the present approach ~nem~tjons fohow without ~~~~ty.

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