Predicting fatigue damage in adhesively bonded joints using a cohesive zone model
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Khoramishad, H, Crocombe, AD, Katnam, KB and Ashcroft, IA (2010) Predicting fatigue damage in adhesively bonded joints using a cohesive zone model INTERNATIONAL JOURNAL OF FATIGUE, 32 (7). 1146 - 1158. ISSN 0142-1123
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Official URL: http://dx.doi.org/10.1016/j.ijfatigue.2009.12.013
Abstract
A reliable numerical damage model has been developed for adhesively bonded joints under fatigue loading that is only dependant on the adhesive system and not on joint configuration. A bi-linear traction–separation description of a cohesive zone model was employed to simulate progressive damage in the adhesively bonded joints. Furthermore, a strain-based fatigue damage model was integrated with the cohesive zone model to simulate the deleterious influence of the fatigue loading on the bonded joints. To obtain the damage model parameters and validate the methodology, carefully planned experimental tests on coupons cut from a bonded panel and separately manufactured single lap joints were undertaken. Various experimental techniques have been used to assess joint damage including the back-face strain technique and in situ video microscopy. It was found that the fatigue damage model was able to successfully predict the fatigue life and the evolving back-face strain and hence the evolving damage.
| Item Type: | Article |
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| Additional Information: | NOTICE: this is the author’s version of a work that was accepted for publication in International Journal of Fatigue. 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 Fatigue, 32(7), July 2010, DOI 10.1016/j.ijfatigue.2009.12.013 |
| Uncontrolled Keywords: | Science & Technology, Technology, Engineering, Mechanical, Materials Science, Multidisciplinary, Engineering, Materials Science, Adhesively bonded joints, Cohesive zone model, Fatigue damage modelling, Thick laminated substrates, Back-face strain, Video microscopy, FINITE-ELEMENT APPROACH, SINGLE-LAP JOINTS, CRACK-GROWTH, FRACTURE, DELAMINATION, SIMULATION, INTERFACE, LIFE, COMPOSITES, PARAMETERS |
| Divisions: | Faculty of Engineering and Physical Sciences > Mechanical Engineering Sciences |
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| ID Code: | 716729 |
| Deposited By: | Symplectic Elements |
| Deposited On: | 01 Oct 2012 19:35 |
| Last Modified: | 28 Apr 2013 14:37 |
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