航空发动机叶轮超高周疲劳寿命预测方法
王延忠,杨凯,齐荣华,陈燕燕,李菲,高浩
Ultra-high cycle fatigue life prediction method for aero engine impeller
Yan-zhong WANG,Kai YANG,Rong-hua QI,Yan-yan CHEN,Fei LI,Hao GAO
表 1
TC4疲劳寿命数据
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Tab.1
Fatigue life data of TC4
R
s
δ
a
/MPa
M
k
/MPa
N
f
−1
750
553
35 700
−1
725
553
135 600
−1
700
553
127 300
−1
675
553
168 950
−1
650
553
739 300
−1
625
553
2 173 600