An investigation into the stresses in double-lap adhesive joints with laminated composite adherends

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:47

Article

Tsai, M. Y.¹  Morton, J.² 

[1] Chang Gung Univ, Dept Mech Engn, Tao Yuan 333, Taiwan

[2] Univ Oxford, Dept Engn Sci, Oxford OX1 3PJ, England

关键词: Double-lap joint;    Adhesive;    Adherend;    Laminated composites;    Stress analysis;    Moire interferometry;   

DOI  :  10.1016/j.ijsolstr.2010.08.011

来源: Elsevier

【 摘 要 】

The mechanics of double-lap joints with unidirectional ([0(16)]) and quasi-isotropic ([0/901-45/45](2S)) composite adherends under tensile loading are investigated experimentally using moire interferometry, numerically with a finite element method and analytically through a one-dimensional closed-form solution. Full-field moire interferometry was employed to determine in-plane deformations of the edge surface of the joint overlaps. A linear-elastic two-dimensional finite element model was developed for comparison with the experimental results and to provide deformation and stress distributions for the joints. Shear-lag solutions, with and without the inclusion of shear deformations of the adherend, were applied to the prediction of the adhesive shear stress distributions. These stress distributions and mechanics of the joints are discussed in detail using the results obtained from experimental, numerical and theoretical analyses. Crown Copyright (C) 2010 Published by Elsevier Ltd. All rights reserved.

【 授权许可】

Free