动态应变疲劳干涉模型

STRAIN-STRENGTH TIME MODEL(SSTM)

鉴于应变载荷和应变强度的随机波动性和可靠性的时间变化性，该文建立了动态应变疲劳干涉模型，算例演示了两种情况下（Ｍａｎｓｏｎ－Ｃｏｆｆｉｎ公式和三参数幂函数公式Ｐ～ε～Ｎ曲线）动态应变可靠度的计算方法．

In this paper, the strain-strength time model(SSTM) is presented on the basis of the random wave of strain-load and strain-strength and the changeability of reliability with time.Examples are given,showing the calculation methods of strain reliability with time by means of the P-8-N curve of the Manson-Coffin formula and the three-parameter power function.