两种时间尺度下的遗传积分通式

A General Hereditary Integral Expression Under Two Time Dimensions

对以往遗传积分的表达式中积分上限ｔ和被积函数中变量ｔ给以不同的解释。首次提出了两种时间尺度，并推导出通用的遗传积分表达式，据此可更清晰地描述在任意时刻所施加的各级应力总和作用下的总应变随时间的无限变化情况。

The upper limit t and varable t in the integrand in Boltzmann hereditary integral are expressed as different forms, and explained as another meaning in this paper. Two time dimensions are proposed, and a general expression is presented also herein. Under step stress inforcement at any pointed time, the process of general strain varid with time can be described more clearly.