THERMO-MECHANICAL ANALYSIS OF CYCLICALLY LOADED PARTICLE-REINFORCED ELASTOMER COMPONENTS: EXPERIMENT AND FINITE ELEMENT SIMULATION
THERMO-MECHANICAL ANALYSIS OF CYCLICALLY LOADED PARTICLE-REINFORCED ELASTOMER COMPONENTS: EXPERIMENT AND FINITE ELEMENT SIMULATION
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DOI：
10.5254/rct.15.84852
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发表时间：
2016-01-01
影响因子：
1.5
通讯作者：
Klueppel, M.
中科院分区：
文献类型：
--
作者：
Behnke, R.;Kaliske, M.;Klueppel, M.
在使用过程中，弹性体部件经常受到周期性载荷的影响。使用弹性体部件是因为它们具有很大的延伸性和显著的减震特性，而后者源于非弹性材料特性。结合循环加载条件，材料的非弹性性质产生机械能耗散，并将其转化为热能，并在弹性体组件中积热。对弹性体的热力耦合进行实验和数值分析是预测弹性体部件温升的前提。在这一贡献中，对循环加载哑铃形弹性体部件进行了实验和数值研究。在有限元方法中，采用有限非线性粘弹性和温度和变形相关的热容量的热力材料模型来计算哑铃形弹性体部件中的生热。将三种不同加载频率下的模拟结果(表面温度演变)与实验数据进行了比较。
Elastomer components are often subjected to periodic loading conditions during service. Elastomer parts are used because of their large extensibility and significant damping characteristics, where the latter originate from inelastic material features. Combined with cyclic loading conditions, the inelastic properties of the material yield mechanical energy dissipation, its transformation to thermal energy, and heat buildup in the elastomer component. The experimental and numerical understanding of the thermo-mechanical coupling of elastomers is a prerequisite to predict the temperature rise in elastomer components. In this contribution, experimental and numerical investigations on cyclically loaded dumbbell-shaped elastomer components are addressed. A thermo-mechanical material model representing finite nonlinear viscoelasticity and a temperature- and deformation-dependent heat capacity is used within the finite element method to compute the heat buildup in the dumbbell-shaped elastomer components. The simulation results (surface temperature evolution) for three different loading frequencies are compared with experimental data.