Mode-Ⅱ Fatigue Crack Growth Model from Shear-Type Low Cycle Fatigue Properties

摘要：

　　The inherent law between fatigue behaviors of shear-type representative volume element and mode-Ⅱ fatigue crack growth is found in the range of cycle plastic zone near the crack tip.Prediction model for mode-Ⅱ fatigue crack growth rate is then proposed by utilizing shear-type low cycle fatigue properties,plastic strain energy criterion,and effective cycle stress-strain field.Experimental data of two Aluminum alloys,2024-T351 and 7075-T6,are used for the model verification.Good agreement between experimental and theoretical results is obtained.

关键词： Cycle plastic zone Fatigue failure criterions Mode-Ⅱ fatigue crack growth Representative volume element Shear-type low cycle fatigue

作者: SHI Kaikai CAI Lixun QI Shuang BAO Chen

作者单位: Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province,School of Mechanics and Engineering,Southwest JIAOTONG University,Chengdu,610031,China

会议类型: 国际会议

会议名称: 2016 International Symposium on Structural Integrity，ISSI—2016(2016国际结构完整性研讨会)

会议地点: 天津

会议语种:英文

页码: 15-21

在线出版日期: 2016-05-26（万方平台首次上网日期，不代表论文的发表时间）