基于有限元分析的橡胶回弹性模拟  

Simulation of rubber resilience based on finite element analysis

作　　者：雍占福 王茂辉 黄兆阁[1] YONG Zhan-fu;WANG Mao-hui;HUANG Zhao-ge(School of Polymer Science and Engineering,Qingdao University of Science and Technology,Qingdao 266042,China)

机构地区：[1]青岛科技大学高分子科学与工程学院,山东青岛266042

出　　处：《合成橡胶工业》2024年第1期45-49,共5页China Synthetic Rubber Industry

基　　金：国家自然科学基金资助项目(51972185)。

摘　　要：借助有限元分析软件ABAQUS模拟了橡胶材料回弹测试的实验过程,探讨了回弹过程中的能量变化情况,为橡胶材料黏弹性的进一步研究做了铺垫。结果表明,新方法的表征结果与实际测试结果基本一致,证明拟合的本构方程与材料本身属性相符,同时表征了回弹过程中能量的准确变化。在冲击过程中,摆锤的动能主要转化为试样的弹性势能和耗散能。此外,通过分析试样模型温度场的变化,更加直观地观察到橡胶变形过程中的能量损耗导致的温度上升,说明部分损失的动能转化为热能散失到了环境中。The experimental process of rebound testing of rubber material was simulated using finite element analysis software ABAQUS,and the energy changes during the rebound process were discussed,laying the foundation for further research on viscoelasticity of rubber materials.The results showed that the characterization results of the new method were basically consistent with the actual test results,proving that the fitted intrinsic equation was consistent with the properties of the material itself,and at the same time characterizing the accurate energy changes during the rebound process.During the impact process,the kinetic energy of the pendulum was mainly transformed into the elastic potential energy and dissipation energy of the specimen.In addition,by analyzing the changes in the temperature field of the sample model,it was more intuitive to observe the temperature rise due to the energy loss during rubber deformation,indicating that part of the lost kinetic energy was converted into thermal energy and dissipated into the environment.

关 键 词：橡胶回弹性 有限元分析 构象熵 能量损耗 

分 类 号：TQ330.7[化学工程—橡胶工业] TB115[理学—数学]