松弛与蠕变力学特性转换关系的研究

Conversion Relations Between Relaxation and Creep

本文首先论述了拉伸应力松弛模量Ｅ（ｔ）与拉伸蠕变柔量Ｄ（ｔ）之间的近似与精确转换关系式，提出一种诊断Ｄ（ｔ）的数值积分算法。通过应力松弛模量实验给出一种固体推进剂的Ｅ（ｔ）和Ｄ（ｔ）的实测与转换计算结果，计算结果有较小的误差具有重要的实用价值。

In this paper exact and approximate conversion formula for tensile stress relation modulus E(t)and tensile creep compliance D(t)are discussed.A method of calculating the numerical integral for sovling D(t)is presented.The results obstained from experiment and conversion calculation for E(t)and D(t)are given for a solid propellant on the basis of the experiments of determing tensile relaxation modulus.calculated results show that the errors of this method are small enough for practical application.