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Some stress intensity factors for self-similar cracks, derived from path-independent integrals
1978 (English)In: Journal of elasticity, ISSN 0374-3535, E-ISSN 1573-2681, Vol. 8, no 3, 259-271 p.Article in journal (Refereed) Published
Abstract [en]

A new method of computing stress intensity factors for self-similar cracks in the plane is discussed. It is based on some known path-independent integrals whose forms make them suited for use in elastic fields showing expansional invariance. General integral formulas for the various segments of a chosen integration contour are presented and also applied. The integrals generally express the total energy release rate at self-similar growth, but for the expansion loaded star crack and the symmetrically cracked wedge opened by concentrated forces the stress intensity factors are obtained in closed form.

Place, publisher, year, edition, pages
1978. Vol. 8, no 3, 259-271 p.
URN: urn:nbn:se:ltu:diva-10357DOI: 10.1007/BF00130465Local ID: 928eee20-8d46-11dc-a188-000ea68e967bOAI: diva2:983299
Uppr├Ąttat; 1978; 20071107 (ysko)Available from: 2016-09-29 Created: 2016-09-29

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Ouchterlony, Finn
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