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首页> 外文期刊>鋼構造年次論文報告集 >Fatigue crack propagation of through-thickness crack subjected to out-of-plane bending
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Fatigue crack propagation of through-thickness crack subjected to out-of-plane bending

机译：平面外弯曲下全厚度裂纹的疲劳裂纹扩展

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摘要

In Japan, fatigue through-thickness cracks have been reported in some steel bridges. Some of the cracks are originated by out-of-plane bending. For performing more efficient maintenance against the fatigue damages, it is essential to identify the crack propagation behavior of the through-thickness crack under out-of-plane bending. In this paper, in order to identify the propagation behavior of through-thickness crack under out-of-plane bending, the fatigue test on through-thickness cracked plate was carried out. Moreover, through finite element analysis on the test specimen, the stress intensity factor along curved crack front was investigated.
机译：在日本，据报道在一些钢桥中出现了疲劳全厚度裂纹。一些裂纹是由平面外弯曲引起的。为了更有效地维护疲劳损伤，必须确定平面外弯曲下全厚度裂纹的裂纹扩展行为。为了确定全厚度裂纹在平面外弯曲下的传播行为，对全厚度裂纹板进行了疲劳试验。此外，通过对试件进行有限元分析，研究了弯曲裂纹前沿的应力强度因子。

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