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Delamination characteristics of glare laminates containing doubler and splice features under high cycle fatigue loading

Al-Azzawi, Ahmad S. M., Kawashita, L. F. and Featherston, Carol 2016. Delamination characteristics of glare laminates containing doubler and splice features under high cycle fatigue loading. Presented at: 24th UK Conference of the Association for Computational Mechanics in Engineering, Cardiff University, Cardiff , UK, 31 March - 1 April 2016. Proceedings of the 24 th UK Conference of the Association for Computational Mechanics in Engineering 31 March – 01 April 2016 ,. pp. 1-4.

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Abstract

A modified cohesive zone model (CZM) has been developed to simulate damage initiation and evolution in Glare ™ Fibre - Metal Laminate (FML) specimens containing both splice and doubler features under high - cycle fatigue load ing. The model computes the cohesive stiffness degradation un der mixed - mode loading based on user - defined crack growth rate data and is implemented in a VUMAT subroutine for the FE A software Abaqus/Explicit. To validate the model experimental data has been ob tained for a number of Glare 4B specimens containing splice and doubler features monitored using digital ima ge correlation (DIC) to provide full - field displacement and strain data and Acoustic Emission (AE) monitoring to detect damage initiation and pro pagation. The model was used to predict the initiation and growth of damage in splice joints under quasi - static loading. The results were verified against the cohesive zone model available in Abaqus and then validated against experimental data on Glare spe cimens. The codes are currently being extended to incorporate a mixed - mode fatigue damage evolution model based on input Paris laws, which have been extracted from high cycle fatigue experiments on Glare specimens containing both splice and doubler joint

Item Type: Conference or Workshop Item (Paper)
Date Type: Completion
Status: Published
Schools: Engineering
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Funders: Cardiff Universirty
Date of First Compliant Deposit: 5 April 2016
Date of Acceptance: 1 April 2016
Last Modified: 20 May 2019 10:38
URI: http://orca.cf.ac.uk/id/eprint/88841

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