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Fatigue life and backface strain predictions in adhesively bonded joints

Solana, AG, Crocombe, AD and Ashcroft, IA (2010) Fatigue life and backface strain predictions in adhesively bonded joints INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES, 30 (1). 36 - 42. ISSN 0143-7496

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Abstract

Fatigue is a very important factor in any adhesively bonded structure subject to service loads. Prediction of fatigue life using finite element analysis (FEA) techniques is very complicated due to the complex nature of fatigue damage. This paper presents experimental data obtained by testing single lap joints (SLJs) in constant amplitude fatigue at a range of load levels and associated fatigue damage modelling. Six strain gauges (SGs) placed along the overlap were used to monitor fatigue initiation and propagation within the adhesive layer. An elasto-plastic damage model was developed that was capable of predicting the experimentally observed backface strain patterns and fatigue life at different fatigue loads. It was implemented in the finite element code ABAQUS and used a user defined subroutine to calculate the damage, and the resultant degradation in adhesive Young's modulus and yield stress.

Item Type: Article
Additional Information: NOTICE: this is the author’s version of a work that was accepted for publication in International Journal of Adhesion and Adhesives. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in International Journal of Adhesion and Adhesives, 30(1), January 2010, DOI 10.1016/j.ijadhadh.2009.08.001
Uncontrolled Keywords: Science & Technology, Technology, Engineering, Chemical, Materials Science, Multidisciplinary, Engineering, Materials Science, Epoxy/epoxides, Aluminium and alloys, FE stress analysis, Fatigue, Progressive damage modelling, DOUBLE-LAP JOINTS, CRACK INITIATION, DAMAGE EVOLUTION, EPOXY ADHESIVE, PROPAGATION, GROWTH, SINGLE
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Divisions: Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
Depositing User: Symplectic Elements
Date Deposited: 24 Sep 2012 19:39
Last Modified: 23 Sep 2013 19:38
URI: http://epubs.surrey.ac.uk/id/eprint/716731

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