Crack growth under alternating loading

被引：4
作者：
Tikhomirov, V. M. [1 ]
机构：
[1] Siberian State Univ Means Commun, Novosibirsk 630049, Russia
来源：
JOURNAL OF APPLIED MECHANICS AND TECHNICAL PHYSICS | 2008年 / 49卷 / 05期
关键词：
alternating loading; fatigue crack; initial crack opening; stress intensity factor;
D O I：
10.1007/s10808-008-0106-3
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
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：8
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