层合板单搭胶接接头应力的三维有限元分析  

Three-dimensional finite element stress analysis of single-lap laminates adhesively joints

作　　者：张银银 杨银环[1] 刘思远 ZHANG Yin-yin;YANG Yin-huan;LIU Si-yuan(School of Energy-and Civil Engineering,Harbin University of Commerce,Harbin 150028,China)

机构地区：[1]哈尔滨商业大学能源与建筑工程学院,哈尔滨150028

出　　处：《哈尔滨商业大学学报（自然科学版）》2018年第6期727-730,共4页Journal of Harbin University of Commerce：Natural Sciences Edition

基　　金：大学生创新创业训练计划资助项目(201710240024);哈尔滨商业大学博士科研启动基金资助项目(13DL008);哈尔滨商业大学青年创新人才培养计划资助项目(2016QN061);黑龙江省自然科学基金资助项目(E1016050)

摘　　要：应用ANSYS有限元分析软件,用APDL语言开发了相应的程序,研究T700/TDE86复合材料层合板单搭胶接接头在单向拉伸载荷作用下的胶层中面及界面应力,分析了接头界面最大剪切/剥离应力值随胶层厚度尺寸变化的规律,模拟了接头在胶层厚度中间面上的三维应力分布情况.结果表明,明显的剪切/剥离应力集中均发生在接头搭接区端部,影响接头强度的主要因素是剪应力;伴随胶层厚度的增加,接头界面最大剪应力值先减小再增大,而最大剥离应力值则逐渐增大,接头界面剪应力最小值发生在胶层厚度为0. 25 mm的接头,即为胶接接头胶层厚度的较优值.The numerical analysis of single-lap laminates adhesive joints was applied in AN-SYS parametric design language （APDL） with commercial finite element codes ANSYS.Stress distributions on T700/TDE86 single-lap laminates joints （SLJ） under the uniaxial ten-sile loading were investigated, a three-dimensional finite element simulation was carried outto analyze the peel/shear stress fields and effect of adhesive thickness on the maximum stressalong the nfid-surface of the adhesive layer. It was found that stress concentrations were oc-CraTed to the overlap end, and shear stress was the main factor to leading to joint failure. Inaddition, The maximum peel stress in the joint interface increased with increasing the adhe-sive thickness. The maximum shear stress in the joint interface did not decrease all the timeswith increasing the adhesive thickness. Strength of the joint with around 0. 25 mm adhesivethickness was greater.

关 键 词：层合板 单搭 胶接接头 剪切/剥离应力 界面 胶层厚度 

分 类 号：TG491[金属学及工艺—焊接]