Numerical Simulation and Experimental Study on Dynamic Heat Build-up of Rubber

Xin-yu Wang; Wei Wang

doi:10.11777/j.issn1000-3304.2020.20231

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Numerical Simulation and Experimental Study on Dynamic Heat Build-up of Rubber

Research Article | 更新时间：2024-02-20

- Numerical Simulation and Experimental Study on Dynamic Heat Build-up of Rubber
- ACTA POLYMERICA SINICA Vol. 52, Issue 7, Pages: 787-795(2021)
- 作者机构：
  
  青岛科技大学橡塑材料与工程教育部重点实验室山东省橡塑材料与工程重点实验室　青岛 266042
- 作者简介：
  
  Wei Wang, E-mail: ww@qust.edu.cn
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2020.20231
  CLC：
- Published：20 July 2021，
  
  Published Online：17 December 2020，
  
  Received：16 October 2020，
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王新宇,王伟.橡胶动态生热数值模拟与实验研究[J].高分子学报,2021,52(07):787-795.

Xin-yu Wang, Wei Wang. Numerical Simulation and Experimental Study on Dynamic Heat Build-up of Rubber. [J]. ACTA POLYMERICA SINICA 52(7):787-795(2021)
王新宇,王伟.橡胶动态生热数值模拟与实验研究[J].高分子学报,2021,52(07):787-795. DOI： 10.11777/j.issn1000-3304.2020.20231.

Xin-yu Wang, Wei Wang. Numerical Simulation and Experimental Study on Dynamic Heat Build-up of Rubber. [J]. ACTA POLYMERICA SINICA 52(7):787-795(2021) DOI： 10.11777/j.issn1000-3304.2020.20231.

摘要

为提高橡胶动态生热数值模拟的计算精度，基于时温等效原理给出了一种同时考虑温度和应变率来确定拉伸测试条件的方法，它可同时满足设备测试条件和制品使用工况. 此外，为获得更准确的超弹性本构方程参数，采用了一种用应力松弛实验得到橡胶完全松弛状态下的一组应力来拟合黏弹性算法中超弹性部分的方法. 采用上述测试方法并借助ABAQUS软件建立橡胶圆柱的动态生热有限元模型，在考虑温度、应变率和动应变幅值对橡胶力学性能影响的基础上，本研究用基于损耗角正切和超弹性模型的生热计算方法和基于频域Prony级数的黏弹性生热计算方法分别计算了橡胶圆柱的压缩生热. 结果表明，2种方法计算的温升均与压缩生热实验结果吻合较好，但黏弹性算法精度更高，预测的升温历程与实验结果吻合很好，更好地描述了橡胶滞后生热现象，从而验证了本文提出的确定材料测试条件方法的正确性.

Abstract

In order to improve the calculation accuracy of the numerical simulation of rubber dynamic heat build-up

based on the time-temperature equivalence principle

a new method to determine the tensile test conditions taking into account both temperature and strain rate is proposed in this study. It may meet the test conditions of equipment and service conditions of rubber products at the same time. Moreover

in order to obtain more accurate parameters of the hyperelastic constitutive equation

a set of stresses obtained by stress relaxation experiment under the fully relaxed state of rubber is used to fit the hyperelastic model of viscoelastic approach. Based on the mentioned test methods and ABAQUS software

the dynamic compression heat generation finite element models of rubber cylinder are established. Considering the influence of temperature

strain rate and dynamic strain amplitude on the mechanical properties of rubber

the heat build-up calculation method based on loss tangent and hyperelastic model and viscoelastic heat build-up calculation method based on Prony series in frequency domain are respectively used to calculate the compression heat build-up of rubber cylinder. The results show that the temperature rise calculated by the two approaches are in agreement with the experimental results of compression heat build-up

but the viscoelasticity algorithm has higher accuracy

and the heat build-up history predicted agrees well with the experimental results

which can better describe the hysteresis heat build-up phenomenon of rubber

consequently verifying the correctness of the material test conditions proposed in this study.

关键词

橡胶动态生热时温等效原理数值模拟黏弹性模型

Keywords

Rubber dynamic heat build-upTime-temperature equivalence principleNumerical simulationViscoelastic model

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Key Laboratory for Liquid-solid Structural Evolution and Processing of Materials (Ministry of Education), Shandong University

Technical Center, Shandong LL Tire Co. LTD., Zhaoyuan

School of Materials Science and Engineering, Qilu University of Technology

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