橡胶-帘线增强复合材料的本构模型及数值模拟Constitutive Modeling and Numerical Simulation of Rubber-Cord Composites
孙书蕾;陈文国;
摘要(Abstract)：
针对有两族帘线的橡胶—帘线增强复合材料,基于Spencer的连续介质力学不变量理论,提出了一种非线性超弹性本构模型。通过引入两个帘线排列方向的结构张量把单位体积的自由应变能分解为便于参数识别的体积变形、等容变形和各向异性变形三部分。分别用纯橡胶单轴拉伸实验,沿帘线方向单轴拉伸实验数据拟合得到等容变形和各向异性变形的材料参数。通过COMSOL弱形式偏微分方程,对橡胶-帘线增强复合材料在有限变形下的单轴拉伸进行数值模拟。预测了帘线在不同排列方向条件下的力学性能,为轮胎的力学分析打下了坚实的基础。
关键词(KeyWords)： 复合材料;本构;超弹性;橡胶;各向异性
基金项目(Foundation): 贵州省联合基金（黔科合LH字[2016]7105）;; 贵州省科技计划项（黔科合基础[2016]1063）;; 国家自然科学基金青年科学基金（51605107）
作者(Author): 孙书蕾;陈文国;
Email:
DOI: 10.19356/j.cnki.1001-3997.2021.03.012
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