| 缺口试件在压缩循环载荷下的疲劳行为研究 |
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| 引用本文： | 陈瑞峰,何宇廷.缺口试件在压缩循环载荷下的疲劳行为研究[J].大连理工大学学报,1996,36(6):664-667. |
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| 作者姓名： | 陈瑞峰 何宇廷 |
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| 作者单位： | Chen Ruifeng，Chen Haoran，Ren Mingfa ( Research Institute of Engineering Mechanics，DUT ) He Yuting，Fu Xiangjiong ( Northwestern Polytechnical University ) |
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| 摘 要： | 主要研究锐缺口在压－压缩载荷下的裂纹扩展规律。为了探讨索缺口试件在压循环载荷下裂纹扩展规律，首先进行了试验研究。试验结果表明在等幅压循环载荷下裂纹可以扩展，但其扩展速率是逐步降低的，并最终发生休眠。
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| 关 键 词： | 循环载荷 裂纹 缺口试件 疲劳行为 |
Fatigue behaviour of sharp notch specimens under cyclic compressive load |
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| Chen Ruifeng,Chen Haoran,Ren Mingfa.Fatigue behaviour of sharp notch specimens under cyclic compressive load[J].Journal of Dalian University of Technology,1996,36(6):664-667. |
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| Authors: | Chen Ruifeng Chen Haoran Ren Mingfa |
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| Abstract: | This paper mainly studies fatigue crack propagation on specimens with sharp notch under cyclic compressive load. For this purpose, fatigue tests have been made. The test results show that crack can propagate under cyclic compressive load. But the crack propagation rate is gradually decreased, and finally rests. Through further analysis, the authors recognize that the crack propagation depends on tensile residual stress, and the final crack length depends on plastic zone in crack tip. |
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| Keywords: | compression loads cyclic loads cracks residual stress tension |
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