4.5.2 Low cycle fatigue curve 过程设备设计 100 (4-94) 2100-y 8.=E.+E S ea ee +-ee ee s=-Ee to (4-95) P E 100 n O 4√N100 E 100 n + 4√N100-y (4-96)8 4.5.2 Low cycle fatigue curve
 −ψ = 100 100 ln 2 1 C
4-94 t p e ε = ε + ε E t E p E e S ε ε ε 21 21 21 = = + a E e σ ε 21 = S E p σ a = ε + 21
4-95 S E N = a − + 4 100 100 ln ψ σ S E N = − + − 4 100 100 1 ln ψ σ
4-96