文献类型：期刊文献

英文题名：On K_I estimates of cracked pipes using an elliptical hole model and elementary beam strength theory of cracked beams

作者：Xie, YJ; Li, PN; Xu, H

机构：[1]Fushun Petr Inst, Dept Mech Engn, Fushun 113001, Peoples R China;[2]E China Univ Sci & Technol, Dept Mech Engn, Shanghai 200237, Peoples R China

年份：1998

卷号：59

期号：3

起止页码：399

外文期刊名：ENGINEERING FRACTURE MECHANICS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000072433600012)】；

语种：英文

外文关键词：stress intensity factor; mechanics; fracture

摘要：Based on energy release rates of elementary beams, an approximate expression was proposed by Herrmann et at. [1-4, 6, 7] for calculating the stress intensity factors (SIFs). In their method, the cracks in beam were simulated by a rectangular defect. In present paper, an elliptical hole is proposed to describe the discontinuities in Stiffness of cracked pipes for estimating SIFs, and the results produced by this proposal are remarkably in agreement with the exact solutions obtained from complete shell analysis. (C) 1998 Elsevier Science Ltd.