Evaluation of Adhesive Joints for Combined Load Test-Fixtures  

作　　者：Mohammad M. Islam 

机构地区：[1]Department of Engineering Science and Mechanics, Virginia Polytechnic Institute and State University, Blacksburg 24061, VA, USA [2]Department of Civil and Environmental Engineering, Princeton University, Princeton 08544, N J, USA

出　　处：《Journal of Mechanics Engineering and Automation》2013年第9期529-542,共14页机械工程与自动化（英文版）

摘　　要：Abstract： In a test-fixture that the authors were using, steel tabs adhesively bonded to an aluminum panel debonded before the design load on the real test panel was fully applied. Therefore, studying behavior of adhesive joints for joining dissimilar materials was deemed to be necessary. To determine the failure load responsible for debonding of adhesive joints of two dissimilar materials, stress distributions in adhesive joints as obtained by a nonlinear finite element model of the test-fixture were studied under a gradually increasing compression-shear load. It was observed that in-plane stresses were responsible for the debonding of the steel tabs. To achieve a better understanding of adhesive joints of dissimilar materials, finite element models of adhesive lap joints and ADCB （asymmetric double cantilever beam） were studied, under loadings similar to the loading faced by the test-fixture. The analysis was performed using ABAQUS, a commercially available software, and the cohesive zone modeling was used to study the debonding growth.

关 键 词：Cohesive modeling DELAMINATION finite element analysis ADCB test-fixture. 

分 类 号：TU473.11[建筑科学—结构工程] TQ330.389[建筑科学—土工工程]