Crack growth under alternating loading

被引：0
|
作者：
V. M. Tikhomirov
机构：
[1] Siberian State University of Means of Communication,
来源：
Journal of Applied Mechanics and Technical Physics | 2008年 / 49卷
关键词：
alternating loading; fatigue crack; initial crack opening; stress intensity factor;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Crack propagation under alternating loading is investigated. Relations between the growth rate of a fatigue defect and loading parameters and the expression for the stress intensity factor are derived for compression of a cracked solid taking into account the possible contact of the crack faces. A model for the deformation of a small region near the crack tip is proposed which allows one to formulate the conditions of residual opening of a growing fatigue crack. The experimental data obtained in tests of steel samples are compared with the results of calculation using the developed procedure.
引用
收藏
页码：864 / 871
页数：7
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