On calculation of SIFs for circular and moderately non-circular cracks

SIFs on a circular crack due to distributed tractions are given by singular integrals over the crack surface. Surrounding the singularity point by a small (almost) semicircular region, we evaluate the singular part of the integral in a universal closed form. This leads to an accurate and numerically...

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Veröffentlicht in:	International journal of fracture 1998-01, Vol.92 (2), p.L21-L26
Hauptverfasser:	KARAPETIAN, E, KACHANOV, M
Format:	Artikel
Sprache:	eng
Schlagworte:	Circularity Cracks Exact sciences and technology Fracture mechanics (crack, fatigue, damage...) Fracture mechanics, fatigue and cracks Fundamental areas of phenomenology (including applications) Integrals Physics Solid mechanics Structural and continuum mechanics
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Beschreibung
Zusammenfassung:	SIFs on a circular crack due to distributed tractions are given by singular integrals over the crack surface. Surrounding the singularity point by a small (almost) semicircular region, we evaluate the singular part of the integral in a universal closed form. This leads to an accurate and numerically trivial procedure. It is also extended to moderately non-circular cracks.
ISSN:	0376-9429 1573-2673
DOI:	10.1023/A:1007541916027