Influence of Stress Parallel to Crack Plan on Subcritical Crack Propagation in Glass under Biaxial Stress

Weihong Li; Lijiu Wang; Chunan TangYiwang BaoXiong ChenShuang Xu

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Influence of Stress Parallel to Crack Plan on Subcritical Crack Propagation in Glass under Biaxial Stress

机译：Influence of Stress Parallel to Crack Plan on Subcritical Crack Propagation in Glass under Biaxial Stress

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摘要

The aim of this study is to demonstrate the influence of the stress parallel to the crack plane on subcritical crack growth in brittle materials by using a numerical code MFPA~(2D). The mechanism of this influence is also discussed. The curves of subcritical crack extension vs. strain of brittle materials under uniaxial and biaxial stress were obtained through numerical tests with acoustic emission consideration. The results showed that the tensile stress parallel to the crack plane has the effect on crack arrest, while the compressive stress parallel to the crack plane plays important role in crack opening process. The numerical results were consistent with experimental observed result, which shows the reliability of the numerical method, and provides theoretic foundation for failure analysis and life estimation of brittle materials.

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来源
《Key engineering materials》 |2005年第2期|1071-1076|共6页
作者
Weihong Li; Lijiu Wang; Chunan TangYiwang BaoXiong ChenShuang Xu;
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作者单位

Research Center for Numerical Test on Material Failure, Dalian University, Dalian, PRC;

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正文语种英语
中图分类工程基础科学;
关键词
brittle materials; subcritical crack-growth; numerical simulation; biaxial stress;

Influence of Stress Parallel to Crack Plan on Subcritical Crack Propagation in Glass under Biaxial Stress

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