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A generalised damage model for constant amplitude fatigue loading of adhesively bonded joints

Khoramishad, H, Crocombe, AD, Katnam, KB and Ashcroft, IA (2010) A generalised damage model for constant amplitude fatigue loading of adhesively bonded joints International Journal of Adhesion and Adhesives, 30 (6). 513 - 521. ISSN 0143-7496

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Official URL: http://dx.doi.org/10.1016/j.ijadhadh.2010.05.003

Abstract

The fatigue resistance of adhesively bonded joints is an important aspect of reliable structural design in many sectors. In this paper, the effect of load ratio on the fatigue behaviour of adhesively bonded joints was investigated using both experimental and numerical approaches. Single lap joints were tested under cyclic loading at different load ratios and load levels to characterise their response. A numerical model that accounts for the load ratio effect in constant amplitude fatigue loading was developed to predict the response of these bonded joints. The progressive damage of the adhesive material was modelled using a cohesive zone approach with a bi-linear traction-separation response. Damage initiation and propagation phases were monitored using the backface-strain and in-situ video-microscopy techniques. The load ratio effect on the fatigue behaviour of adhesively bonded joints was successfully predicted using a strain-based fatigue damage model. The numerical results were found to be in good agreement with the experimentally observed fatigue damage evolution and failure life.

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(6), September 2010, DOI 10.1016/j.ijadhadh.2010.05.003
Divisions:Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences
ID Code:716734
Deposited By:Symplectic Elements
Deposited On:24 Sep 2012 20:29
Last Modified:25 Apr 2013 13:24

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