| 基于粘弹性本构模型的双搭接胶结接头应力分析 |
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| 引用本文： | 张盼,许英杰,汪海滨,顾靖伟. 基于粘弹性本构模型的双搭接胶结接头应力分析[J]. 应用数学和力学, 2015, 36(2): 159-166. DOI: 10.3879/j.issn.1000-0887.2015.02.005 |
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| 作者姓名： | 张盼 许英杰 汪海滨 顾靖伟 |
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| 作者单位： | 1西北工业大学 机电学院, 工程仿真与宇航计算技术联合实验室, 西安 710072;2中国航天科技集团 四院 四十一所, 西安 710025 |
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| 基金项目： | 国家自然科学基金(11302174);陕西省自然科学基金(2012JQ1003)~~ |
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| 摘 要： | 采用广义Maxwell（麦克斯韦尔）粘弹性本构模型表征胶黏剂的时间相关力学特性，采用Yeoh本构模型描述橡胶材料的超弹性，建立了钢-橡胶双搭接胶结接头的有限元计算模型.在此基础上分析了加载时间对接头粘接界面剪切应力的影响.计算结果表明，剪切应力绝对值随着加载时间的增长而减小.此外，分析了胶层厚度对接头粘接界面剪切应力的影响，随着胶层厚度的增加，剪切应力绝对值呈现明显的增大趋势.
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| 关 键 词： | 双搭接胶结接头 粘弹性本构模型 有限元方法 加载时间 胶层厚度 |
| 收稿时间： | 2014-06-10 |
Stress Analyses of Double Lap Bonding Joint Using Viscoelastic Constitutive Model |
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| ZHANG Pan;XU Ying-jie;WANG Hai-bin;GU Jing-wei. Stress Analyses of Double Lap Bonding Joint Using Viscoelastic Constitutive Model[J]. Applied Mathematics and Mechanics, 2015, 36(2): 159-166. DOI: 10.3879/j.issn.1000-0887.2015.02.005 |
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| Authors: | ZHANG Pan XU Ying-jie WANG Hai-bin GU Jing-wei |
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| Affiliation: | 1Engineering Simulation and Aerospace Computing, School of Mechanical Engineering,Northwestern Polytechnical University, Xi’an 710072, P.R.China;2The 41st Institute, the Fourth Academy, CASA, Xi’an 710025, P.R.China |
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| Abstract: | The finite element model of steel-rubber double lap bonding joint was created. The generalized Maxwell viscoelastic constitutive model was employed to model the time-dependent mechanical properties of adhesive. The Yeoh constitutive model was applied to describe the super elasticity of rubber. The influence of loading time on the shear stress of adhesive layer was analyzed. Computed results clearly show that the absolute value of shear stress decreases with the increase of loading time. In addition, the influence of adhesive thickness on the shear stress of adhesive layer is analyzed as well. With the increase of adhesive thickness, the absolute value of shear stress firstly increases obviously. |
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