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A new weight function approach using indirect boundary integral method

โœ Scribed by H.Y. Lee; C.S. Hong

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
830 KB
Volume
53
Category
Article
ISSN
0013-7944

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โœฆ Synopsis

A new weight function approach to determine SIF (stress intensity factor) using the indirect boundary integral method has been presented. The crack opening displacement field was represented by one boundary integral term in the form of a single-layer potential whose kernel was modified from the fundamental solution. The proposed method enables the calculation of SIF using only one SlF formula without any modification of the crack geometries symmetric in a two-dimensional plane, e.g. a center crack in a plate with or without an internal hole, double edge cracks, circumferential crack or radial cracks in a pipe. The application procedure for this variety of crack geometries is very simple and straightforward with only one SIF formula. The necessary information in the analysis is two reference SlFs. The analysis results, using several examples, verified that the present closed-form solution was in good agreement with those of the literature and applicable to various crack geometries.

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