根据松弛模量求近似松弛谱的方法研究  

Research on Solving Method of Approximate Relaxation Spectrum Based on Relaxation Modulus

作　　者：王子川 林福严[1] 刘培伦 李良斌 陈奎文 郭伦锋 WANG Zi-chuan;LIN Fu-yan;LIU Pei-lun;LI Liang-bin;CHEN Kui-wen;GUO Lun-feng(School of Mechanical and Information Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China)

机构地区：[1]中国矿业大学(北京)机电与信息工程学院,北京100083

出　　处：《煤炭技术》2021年第1期156-158,共3页Coal Technology

摘　　要：高聚物材料在特定的温度下都是黏弹性材料。找出材料的松弛谱对研究材料的应力松弛规律和压陷阻力特性是十分重要的。以广义Maxwell模型为基础,研究了此模型下的数学公式并对公式表达形式进行变换。采用理论分析和仿真模拟的方法,找到松弛模量变化规律和松弛时间的近似对应关系,根据得到的关系可以近似确定需要的松弛谱。Polymer materials are viscoelastic materials at specific temperatures. It is very important to find out the relaxation spectrum of materials for studying the law of stress relaxation and characteristics of rolling indentation resistance. Based on the generalized Maxwell model, studies the mathematical formula under this model and transforms the expression form of the formula. By means of theoretical analysis and simulation, the approximate relationship between relaxation modulus and relaxation time is found, and the required relaxation spectrum can be approximately determined according to the obtained relationship.

关 键 词：松弛模量 广义Maxwell模型 松弛谱 

分 类 号：TB324[一般工业技术—材料科学与工程]