The Model and Application of Fatigue Life Based on Fracture Mechanics and Fuzzy Theory

摘要：

　　Based on fracture mechanics and fuzzy theory,a model of fatigue life is developed to predict the fatigue life of structure.The dangerous point and stress amplitude can be gotten by finite element analysis method.According to fracture mechanics theory,considering fuzziness of fatigue life factors,the Paris formula is combined with fuzzy theory and the model of fatigue life based on fuzzy theory is developed.The fuzziness of fatigue life factors is considered in the model so the results are more close to real situation.The model offers reference for fatigue life analysis.

关键词： fracture mechanics fuzzy fatigue

作者: Xing-liang MA Hui-li WANG Si-feng QIN

作者单位: Bridge Science Research Institute Dalian University of Technology,Dalian,Liaoning province,116023,Ch Research Center for Numerical Tests on Material Dalian University,Dalian,Liaoning province,116022,Ch

会议类型: 国际会议

会议名称: 第13届国际断裂大会(ICF2013)

会议地点: 北京

会议语种:英文

页码: 1-7

在线出版日期: 2013-06-16（万方平台首次上网日期，不代表论文的发表时间）