金属橡胶Mooney-Rivlin修正模型试验  

Experimental Investigation on Mooney-Rivlin Modified Model of Metal Rubber

作　　者：邵晓宙 樊文欣[1] 王亚飞 曹志娟 薛双桥 SHAO Xiao-zhou;FAN Wen-xin;WANG Ya-fei;CAO Zhi-juan;XUE Shuang-qiao(School of Mechanical Engineering,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学机械工程学院,太原030051

出　　处：《包装工程》2021年第9期135-140,共6页Packaging Engineering

摘　　要：目的研究金属橡胶的本构关系,建立一种适用于工程计算和数值仿真的金属橡胶Mooney-Rivlin修正模型。方法基于金属橡胶变形过程中刚度非线性、可压缩的特点,将金属橡胶试件的变形分为“等容部分”和“体积部分”这2个部分,采用正交试验法研究加载速度、固相体积分数、丝径对金属橡胶变形“体积部分”的影响程度。结果试验因素对Mooney-Rivlin模型描述金属橡胶本构关系误差的影响顺序为固相体积分数>丝径>加载速度,其中加载速度对误差值的影响程度远小于固相体积分数和丝径。结论修正后的Mooney-Rivlin模型有较好的拟合效果,可以更好地反映金属橡胶非线性刚度的特性,为金属橡胶的实际应用提供了理论参考。The paper aims to study the constitutive relation of Metal Rubber and establish a modified Mooney-Rivlin model of Metal Rubber which is suitable for engineering calculation and numerical simulation.Based on the characteristics of nonlinear stiffness and compressibility in the deformation process of Metal Rubber,the deformation of Metal Rubber specimen was divided into two parts including"Isochoric part"and"Volumetric part".The effects of loading speed,solid volume fraction and wire diameter on the"Volumetric part"of Metal Rubber deformation were studied by orthogonal test.The influence order of experimental factors on the modified Mooney-Rivlin model is Solid volume fraction>Wire diameter>Loading speed.And the influence of loading speed on the deviation is much less than the solid volume fraction or wire diameter.The modified Mooney-Rivlin model has a better fitting effect and can better reflect the nonlinear stiffness characteristics of Metal Rubber,which provides a theoretical reference for the practical application of Metal Rubber.

关 键 词：金属橡胶 本构模型 静态压缩试验 正交试验 

分 类 号：TH212[机械工程—机械制造及自动化]