4.7 Article

Crack initiation and direction for circumferential periodic cracks in pipe under tension and torsion

Journal

THEORETICAL AND APPLIED FRACTURE MECHANICS
Volume 40, Issue 2, Pages 153-159

Publisher

ELSEVIER SCIENCE BV
DOI: 10.1016/S0167-8442(03)00043-0

Keywords

S-theory; stress intensity factor; fracture; mechanics

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The S-theory is applied to determine crack initiation angle and critical load of circumferential periodic cracks in pipe. A technique for determining mode II stress intensity factor is proposed by using G* path independent integral. The method applies also to single-edge crack, double-edge crack and center crack cylindrical panel configurations. (C) 2003 Elsevier Ltd. All rights reserved.

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