Competition Between Fatigue Crack Propagation and Wear
Competition Between Fatigue Crack Propagation and Wear
复制标题
疲劳裂纹扩展与磨损之间的竞争
DOI：
10.1115/1.2920967
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
H. S. Cheng
中科院分区：
文献类型：
--
作者：
H. Fan;L. Keer;W. Cheng;H. S. Cheng
基于巴黎疲劳定律的半经验推导，疲劳裂纹长度a与屈服极限或流动应力相关，其最终与材料的硬度相关。分析认为一起循环加载，这往往会增加表面裂纹长度，和磨损，这往往会减少裂纹长度在表面，并表明，在一定条件下，一个稳定的裂纹长度可能会发展。对两个试验组（（i）Rc = 58.5和（ii）Rc = 62.7）进行的实验倾向于支持本分析。
Based on a semi-empirical derivation of the Paris fatigue law, the fatigue crack length a is related to the yield limit or flow stress, which ultimately is related to the hardness of the material. The analysis considers together the cyclic loading, which tends to increase the surface crack length, and the wear, which tends to decrease the crack length at the surface, and shows that under certain conditions a stable crack length may be developed. Experiments conducted on two test groups ((i) Rc = 58.5 and (ii) Rc = 62.7) tend to support the present analysis.