| 炭黑填充橡胶非线性压缩生热性能的研究 |
| Study on Nonlinear Compression Heat Build-up Performance of Carbon Black Filled Rubber |
| 投稿时间：2019-10-17 修订日期：2019-10-17 |
| DOI：10.12136/j.issn.1000-890X.2020.07.0502 |
| 中文关键词: 炭黑填充橡胶 压缩生热 非线性 热力耦合 动态力学性能 应力软化 有限元分析 |
| 英文关键词: carbon black filled rubber compression heat build-up nonlinear thermal mechanical coupling dynamic mechanical property stress softening finite element analysis |
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| 中文摘要: |
| 采用试验与有限元分析相结合的方法对炭黑填充橡胶（简称橡胶）静动态力学性能和压缩生热性能进行研究。结果表明：橡胶在循环加载时表现出明显的应力软化效应，且通过动态力学分析仪测得橡胶的储能模量和损耗模量都随着温度的升高而明显降低；进一步通过静动刚度仪得到应力软化和温升双重作用下橡胶圆柱（动态压缩）的损耗模量，并通过拟合得到非线性的压缩温升速率方程，最后建立热力耦合有限元模型，其可对橡胶压缩过程中的生热和传热进行拟合分析。 |
| 英文摘要: |
| The static and dynamic mechanical properties and compression heat build-up performance of carbon black filled rubber compound were studied by experiment and finite element analysis. The results showed that the compound had obvious stress softening under cyclic loading，and the storage modulus and loss modulus measured by dynamic mechanical analyzer decreased with the increase of temperature.Furthermore，the loss modulus under dynamic compression which caused both stress softening and temperature rise was obtained by the test using a static and dynamic stiffness tester，and the equation of nonlinear compression
temperature rise rate was obtained. Finally，the thermo mechanical coupling finite element model was established to fit and analyze the heat build-up and heat transfer in rubber compression process. |
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