| 胶层厚度对双搭接胶连接接头承载力的影响分析 |
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| 引用本文： | 刘亚文,宋建国,马毓,赵启林. 胶层厚度对双搭接胶连接接头承载力的影响分析[J]. 玻璃钢/复合材料, 2012, 0(2): 20-24 |
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| 作者姓名： | 刘亚文 宋建国 马毓 赵启林 |
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| 作者单位： | 解放军理工大学工程兵工程学院,江苏南京,210007 |
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| 基金项目： | 国家自然科学基金项目(50608069) |
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| 摘 要： | 基于Hart-Smith对双搭接胶连接接头承载力计算公式的推导,分析了胶层最大剪应变(剪应力)和接头所承受荷载的对应计算关系;结合理论推导和试验详细分析了胶层厚度对此类接头承载力的影响,提出可以用"剥离临界值"判断剥离应力是否会导致接头破坏;以胶层最大剪应变(剪应力)与接头所承受荷载的对应计算关系为基础,结合"剥离临界值"完善了双搭接胶连接接头的承载力计算公式。
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| 关 键 词： | 复合材料 胶层厚度 剥离应力 剥离临界值 承载力 |
IMPACT ANALYSIS OF LOAD CAPABILITY OF DOUBLE LAP ADHESIVE JOINT BY ADHESIVE THICKNESS |
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| LIU Ya-wen , SONG Jian-guo , MA Yu , ZHAO Qi-lin. IMPACT ANALYSIS OF LOAD CAPABILITY OF DOUBLE LAP ADHESIVE JOINT BY ADHESIVE THICKNESS[J]. Fiber Reinforced Plastics/Composites, 2012, 0(2): 20-24 |
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| Authors: | LIU Ya-wen SONG Jian-guo MA Yu ZHAO Qi-lin |
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| Affiliation: | (Engineering Institute of Corps of Engineers,PLA University of Science and Technology,Nanjing 210007,China) |
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| Abstract: | Based on derivation of Hart-Smith formula about load capability of double lap adhesive joint,the calculating relation of the maximum shear strain(shear stress) of adhesive and the load of joint is analyzed.In this paper,the effect of adhesive thickness on the load capability of this joint is examined in detail by methods of theory derivation and testing.Judgement of the joint which is fails or not by critical value of peeling is proposed.On the basis of the calculating relation and critical value of peeling,the formula about load capability of double lap adhesive joint is completed. |
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| Keywords: | composite materials adhesive thickness peeling stress critical value of peeling load capability |
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