STRESS-INTENSITY FACTORS AT TIPS OF A STAR-SHAPED CONTOUR IN AN INFINITE TENSILE SHEET

被引:55
作者
ANDERSSON, H
机构
[1] Division of Strength of Materials, The Lund Institute of Technology, Lund
关键词
D O I
10.1016/0022-5096(69)90026-X
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
It is shown that stresses and strains in an infinite tensile sheet with a hole consisting of an arbitrary number of branches of different lengths and directions emerging from a common origin can be determined by means of methods due to N. Muskhelishvili. The complex stress functions are calculated and the stress-intensity factors at the tips of the branches are studied. Numerical results are given for branched crack contours comprising a straight main crack with one sidebranch of varying length and direction. Also, symmetric forking with arbitrary forking angle is studied. By using a quasi-static point of view necessary conditions for forking are derived. © 1969.
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页码:405 / +
页数:1
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