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Determination of approximative weight functions for straight through cracks

โœ Scribed by T. Fett; M. Caspers; D. Munz; H. Stamm


Publisher
Springer Netherlands
Year
1990
Tongue
English
Weight
685 KB
Volume
43
Category
Article
ISSN
1573-2673

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โœฆ Synopsis


The method of determining approximative weight functions, well known for straight through surface cracks ("edge cracks"), is extended to internal straight through cracks. The procedure is outlined in detail for central cracks in endless strips of infinite and finite widths. For the finite width strip the coefficients of the weight function are given in a closed form.

~A ยขl(x ) u2(x ) dx = fxA ~2(x) ul(x) dx

(2) rB ~.r B


๐Ÿ“œ SIMILAR VOLUMES


Universal features of weight functions f
โœ G. Glinka; G. Shen ๐Ÿ“‚ Article ๐Ÿ“… 1991 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 821 KB

An analysis of known analytical and numerical weight functions for cracks in mode I has revealed that they all have a similar singular term and that it is possible to approximate them with one universal expression with three unknown parameters. The unknown parameters can be determined directly from

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โœ Hyeong-Yeon Lee; Chang-Sun Hong ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 693 KB

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โœ T. Fett ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› Springer Netherlands ๐ŸŒ English โš– 201 KB

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โœ N.I. Ioakimidis ๐Ÿ“‚ Article ๐Ÿ“… 1990 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 363 KB

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, applyin