Evaluation of the mode I stress intensity factor for a square crack in 3D

被引：13
作者：
Helsing, J [1 ]
Jonsson, A
Peters, G
机构：
[1] Royal Inst Technol, Dept Solid Mech, SE-10044 Stockholm, Sweden
[2] Royal Inst Technol, NADA, SE-10044 Stockholm, Sweden
[3] Royal Inst Technol, Dept Math, SE-10044 Stockholm, Sweden
来源：
ENGINEERING FRACTURE MECHANICS | 2001年 / 68卷 / 05期
关键词：
square crack; stress intensity factors; hypersingular integral equation; corner singularity;
D O I：
10.1016/S0013-7944(00)00115-6
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
An algorithm for the computation of mode I stress intensity factors of a square crack together with an error estimate is presented. The algorithm is based on a hypersingular integral equation. The leading singular behavior of the crack opening displacement in the corners is taken into account. The maximum value of the normalized stress intensity factor, F-max, is estimated to F-max = 0.7534 +/- 0.0002. Previous investigators have estimated this quantity in the interval F-max = 0.725 to F-max = 0.756. (C) 2001 Elsevier Science Ltd. All rights reserved.
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页码：605 / 612
页数：8
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