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| 轮胎帘线/橡胶复合材料弹性常数的测试研究 |
| Determination of elastic constants for tire cord/rubber composite |
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| DOI： |
| 中文关键词: 轮胎;帘线/橡胶复合材料;弹性常数;微观力学;宏观力学 |
| 英文关键词: tire;cord/rubber composite;elastic constant;micro-mechanism;macro-mechanism |
| 基金项目:国家自然科学基金资助项目(59573003) |
| 中图分类号:TQ330.7+3 |
| Author Name | Affiliation | | YU Qi | South China University of Technology | | DING Jian-ping | South China University of Technology | | GU Xue-Pu | South China University of Technology | | TU Yu-qian | South China University of Technology |
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| 中文摘要: |
| 以复合材料的微观力学理论和宏观力学理论为基础，探讨了轮胎有限元分析用帘线/橡胶复合材料弹性常数的测试。对哈尔平-蔡方程式、高夫-汤哥拉方程式和赤坂-平野方程式在简化为单层横向同性体帘线/橡胶复合材料弹性常数(纵向弹性模量E1,横向弹性模量E2、面内剪切模量G12、主泊松比μ12和次泊松比μ21)计算中的应用进行了分析探讨。提出用钢丝帘线横截面积变化率来表征钢丝帘线的泊松比μc，并推荐用截面固结法测试μc。可用激光散斑法、云纹法(配合微机图像处理技术)和轨道剪切法测试不同的钢丝帘线/橡胶复合材料弹性常数。对μ12大于1的现象进行了讨论。 |
| 英文摘要: |
| The determination of the elastic constants for cord/rubber composite in FEA of tire was investigated based on the micro- and macro-mechanical theories. The application of Halpin-Tsai formula，Dough-Tangorra formula and AkakxHirano formula in the calculation of the elastic constants of cord/rubber composite (longitudinal elastic modulus E1,lateral elastic modulus E2，shear modulus in plane G12 ,primary Poisson s ratio μ12and second Poisson s ratio μ21) which were simplified as a single-ply composite of same nature in lateral direction was described.It was proposed that the charge percentage of the cross-sectional area of steel cord could be used to chareacterize the Poisson s ratio of steel core μ，and recommended that the fixed crosssection method was used to determine μ.The elastic constants of different cord/rubber composites could be determined by laser spot scatter method，clouding method and rail shear method.The phenomenon that μ was greater than 1 was discussed. |
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