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Evaluation of the elastic stress distribution ahead of a crack by weight functions

โœ Scribed by M. Beghini; L. Bertini; E. Vitale

Publisher
Elsevier Science
Year
1992
Tongue
English
Weight
750 KB
Volume
42
Category
Article
ISSN
0013-7944

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โœฆ Synopsis

Abstra&-A method is illustrated for the evaluation of the stress distribution ahead of a crack under Mode I loading. The method is based on the knowledge of the weight function, whose general properties are employed to derive an integral equation. The solution of this integral equation, having the stress d~~bution as the unknown function, is reached through a numerical technique. Corn~~son with theoretical solutions shows that the proposed method allows an accurate ~pr~uction of the stress ~s~bution for every distance from the crack tip. The possibilities offered by the use of the method in combination with local fracture criteria are discussed.

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