LIU Tianqi
Beijing Key Laboratory of Civil Aircraft Structures and Composite Materials, COMAC Beijing Aircraft Technology Research Institute, Beijing 102211, P. R. ChinaZHANG Guangxin
Beijing Key Laboratory of Civil Aircraft Structures and Composite Materials, COMAC Beijing Aircraft Technology Research Institute, Beijing 102211, P. R. ChinaZHANG Tian
Beijing Key Laboratory of Civil Aircraft Structures and Composite Materials, COMAC Beijing Aircraft Technology Research Institute, Beijing 102211, P. R. ChinaLIU Hao
College of Aerospace and Astronautics, Chongqing University, Chongqing 400044, P. R. ChinaQI Xinxin
Institute of Solid Mechanics, School of Aeronautic Science and Engineering, Beihang University(BUAA), Beijing 100191, P. R. ChinaSHI Xinhong
Institute of Solid Mechanics, School of Aeronautic Science and Engineering, Beihang University(BUAA), Beijing 100191, P. R. ChinaAccording to the study of multiaxial fatigue life of 30CrMnSiA steel, the concept of equivalent S-N curve is proposed based on the uniaxial tension-compression and pure torsion S-N curves in this paper. Based on the equivalent S-N curves, an empirical formula is established to predict the multiaxial fatigue life of hard metal materials. The empirical formula is verified by predicting the fatigue life of various hard metal materials in the literature. Results show that more than 94.0% of the data points are in the ±3 times fatigue life scatter band, and more than 81.8% of the data points are in the ±2 times fatigue life scatter band.
刘天奇,张广鑫,张田,刘浩,亓新新,时新红.硬质金属材料多轴高周疲劳寿命快速预测方法[J].重庆大学学报,2023,46(3):94~102
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