同轴胶接接头峰值剪切应力的正交法分析
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摘要
运用正交试验法研究了几何参数,如胶层厚度、被粘物厚度和搭接长度对铝合金同轴接头峰值剪切应力的影响。通过有限元的极差分析、方差分析、最优方案的平均工程等试验分析,研究结果表明:最优方案为A_2B_1C_4,即在一定几何参数变化范围内,搭接长度越长,被粘物厚度越薄,胶层的峰值剪切应力越小;随着胶层厚度的增加,胶层的峰值剪切应力先减小后增大。
The research was carried out with the method of orthogonal test to study the effects of some mainparameters such as adhesive layer thickness,adherend thickness and lap length on the peak shear stress ofaluminum alloy coaxial bonded joint. Through finite element range analysis,variance analysis and averageengineering analysis of the optimal scheme,the results showed that the optimal scheme was A_2B_1C_4. Namely,withina certain range of geometric parameters,the longer the overlap length was,the thinner the adherend thickness was,and the smaller the peak shear stress of the adhesive layer was. With the increase of the thickness of adhesive layer,the peak shear stress of the adhesive layer first decreased and then increased.
The research was carried out with the method of orthogonal test to study the effects of some mainparameters such as adhesive layer thickness,adherend thickness and lap length on the peak shear stress ofaluminum alloy coaxial bonded joint. Through finite element range analysis,variance analysis and averageengineering analysis of the optimal scheme,the results showed that the optimal scheme was A_2B_1C_4. Namely,withina certain range of geometric parameters,the longer the overlap length was,the thinner the adherend thickness was,and the smaller the peak shear stress of the adhesive layer was. With the increase of the thickness of adhesive layer,the peak shear stress of the adhesive layer first decreased and then increased.
引文
[1]孙德新,游敏,余珊.同轴单搭接胶接接头力学性能的研究[J].弹性体,2008,18(1):18-21.
[2]AVILA A F,BUENO P O. Stress analysis on a wavy-lapbonded joint for composites[J]. Int. J. of Adhesion&Adhesives,2004,24:407-414.
[3]YOU M,YAN Z M,ZHENG Y,et al.Effect of fillet on bi-adhesive bonded aluminum lap joints[J]. Transactions ofNonferrous Metals Society of China,2005,15(S3):344-348.
[4]亚当斯R D,维克W C,陈惠君译.工程结构中的胶接技术[M].北京:科学技术出版社,1991.
[5]游敏,郑小玲.连接结构分析[M].武汉:华中科技大学出版社,2004.
[6]焦良,吕建坤,阚继广.飞机单搭接接头胶接形式的优化[J].粘接,1997,19(2):46-47.
[7]余海洲,游敏,郑小玲.胶层中间隙长度及位置对接头剪切强度的影响[J].粘接,2004,25(3):13-15..
[8]Avila A F,Bueno P O. An experimental and numericalstudy on adhesive joints for composites[J]. CompositeStructures,2004,7:531-537.
[9]刘文卿.试验设计[M].北京:清华大学出版社,2005.
[2]AVILA A F,BUENO P O. Stress analysis on a wavy-lapbonded joint for composites[J]. Int. J. of Adhesion&Adhesives,2004,24:407-414.
[3]YOU M,YAN Z M,ZHENG Y,et al.Effect of fillet on bi-adhesive bonded aluminum lap joints[J]. Transactions ofNonferrous Metals Society of China,2005,15(S3):344-348.
[4]亚当斯R D,维克W C,陈惠君译.工程结构中的胶接技术[M].北京:科学技术出版社,1991.
[5]游敏,郑小玲.连接结构分析[M].武汉:华中科技大学出版社,2004.
[6]焦良,吕建坤,阚继广.飞机单搭接接头胶接形式的优化[J].粘接,1997,19(2):46-47.
[7]余海洲,游敏,郑小玲.胶层中间隙长度及位置对接头剪切强度的影响[J].粘接,2004,25(3):13-15..
[8]Avila A F,Bueno P O. An experimental and numericalstudy on adhesive joints for composites[J]. CompositeStructures,2004,7:531-537.
[9]刘文卿.试验设计[M].北京:清华大学出版社,2005.