Some stress intensity factors for self-similar cracks, derived from path-independent integrals | Zendy

Finn Ouchterlony | Zendy

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Some stress intensity factors for self-similar cracks, derived from path-independent integrals

Author(s) -

Finn Ouchterlony

Publication year - 1978

Publication title -

journal of elasticity

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.678

H-Index - 61

eISSN - 1573-2681

pISSN - 0374-3535

DOI - 10.1007/bf00130465

Subject(s) - stress intensity factor , wedge (geometry) , mathematics , intensity (physics) , mathematical analysis , plane (geometry) , path (computing) , path integral formulation , methods of contour integration , geometry , physics , fracture mechanics , materials science , optics , computer science , composite material , quantum mechanics , quantum , programming language

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.Upprättat; 1978; 20071107 (ysko

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