Approximate Closed from Weight Function for an Elliptical Crack in an Infinite Body

被引:0
作者
A.J. Krasowsky
I.V. Orynyak
A.Yu. Gienko
机构
[1] Institute for Problems of Strength,Department of Physical Foundations of Strength and Fracture
[2] National Academy of Sciences of Ukraine,undefined
来源
International Journal of Fracture | 1999年 / 99卷
关键词
Stress intensity factor; weight functions; crack; influence coefficient; elliptic; numeric.;
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学科分类号
摘要
It have been reported that in literature there exists some number of approximate closed form weight functions for elliptical crack in an infinite body. The general procedure for refining them by Rice's integral formula is suggested. A tentative formula obtained in this way has been numerically verified by a carefully elaborated procedure. For uniform loading the accuracy of suggested formula lies within 6 percent of the strict solution. The practical usage of the formula in the point weight function method for semi-elliptical crack is demonstrated.
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页码:117 / 130
页数:13
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