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Fatigue damage of cohesive interfaces in fiber-reinforced polymer composite laminates

The weak interfaces in fiber-reinforced polymer (FRP) composite laminates often dictates the reliability of the composite structures. In this respect, a new cyclic cohesive zone model (CCZM) is introduced for accurate quantitative description of the interlaminar fatigue failure process. The model in...

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Main Authors:	Koloor, S. S. R., Abdullah, M. A., Tamin, M. N., Ayatollahi, M. R.
Format:	Article
Published:	Elsevier Ltd. 2019
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://eprints.utm.my/id/eprint/87886/ http://dx.doi.org/10.1016/j.compscitech.2019.107779x
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id	my.utm.87886
record_format	eprints
spelling	my.utm.878862020-11-30T13:29:19Z http://eprints.utm.my/id/eprint/87886/ Fatigue damage of cohesive interfaces in fiber-reinforced polymer composite laminates Koloor, S. S. R. Abdullah, M. A. Tamin, M. N. Ayatollahi, M. R. TJ Mechanical engineering and machinery The weak interfaces in fiber-reinforced polymer (FRP) composite laminates often dictates the reliability of the composite structures. In this respect, a new cyclic cohesive zone model (CCZM) is introduced for accurate quantitative description of the interlaminar fatigue failure process. The model incorporates the interlaminar damage through the measured fatigue degradation of the strength, stiffness, and critical energy release rate properties. A combined experimental-finite element (FE) approach is employed to establish the residual interlaminar properties. The new CCZM is examined for the case study on the end-notched flexure (ENF) beam specimen of unidirectional carbon fiber-reinforced polymer (CFRP) composite laminate. The calculated applied resultant shear stress at the critical interface material point, adjacent to the pre-existing crack front, fluctuates at (τmax = 30 MPa, R = 0.1). The interlaminar shear-induced damage shows a sigmoidal form of the damage evolution curve. The pre-existing interface crack propagation begins at 301750 cycles, while maintaining an almost straight advancing crack front. Elsevier Ltd. 2019-10 Article PeerReviewed Koloor, S. S. R. and Abdullah, M. A. and Tamin, M. N. and Ayatollahi, M. R. (2019) Fatigue damage of cohesive interfaces in fiber-reinforced polymer composite laminates. Composites Science and Technology, 183 . p. 107779. ISSN 0266-3538 http://dx.doi.org/10.1016/j.compscitech.2019.107779x
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Koloor, S. S. R. Abdullah, M. A. Tamin, M. N. Ayatollahi, M. R. Fatigue damage of cohesive interfaces in fiber-reinforced polymer composite laminates
description	The weak interfaces in fiber-reinforced polymer (FRP) composite laminates often dictates the reliability of the composite structures. In this respect, a new cyclic cohesive zone model (CCZM) is introduced for accurate quantitative description of the interlaminar fatigue failure process. The model incorporates the interlaminar damage through the measured fatigue degradation of the strength, stiffness, and critical energy release rate properties. A combined experimental-finite element (FE) approach is employed to establish the residual interlaminar properties. The new CCZM is examined for the case study on the end-notched flexure (ENF) beam specimen of unidirectional carbon fiber-reinforced polymer (CFRP) composite laminate. The calculated applied resultant shear stress at the critical interface material point, adjacent to the pre-existing crack front, fluctuates at (τmax = 30 MPa, R = 0.1). The interlaminar shear-induced damage shows a sigmoidal form of the damage evolution curve. The pre-existing interface crack propagation begins at 301750 cycles, while maintaining an almost straight advancing crack front.
format	Article
author	Koloor, S. S. R. Abdullah, M. A. Tamin, M. N. Ayatollahi, M. R.
author_facet	Koloor, S. S. R. Abdullah, M. A. Tamin, M. N. Ayatollahi, M. R.
author_sort	Koloor, S. S. R.
title	Fatigue damage of cohesive interfaces in fiber-reinforced polymer composite laminates
title_short	Fatigue damage of cohesive interfaces in fiber-reinforced polymer composite laminates
title_full	Fatigue damage of cohesive interfaces in fiber-reinforced polymer composite laminates
title_fullStr	Fatigue damage of cohesive interfaces in fiber-reinforced polymer composite laminates
title_full_unstemmed	Fatigue damage of cohesive interfaces in fiber-reinforced polymer composite laminates
title_sort	fatigue damage of cohesive interfaces in fiber-reinforced polymer composite laminates
publisher	Elsevier Ltd.
publishDate	2019
url	http://eprints.utm.my/id/eprint/87886/ http://dx.doi.org/10.1016/j.compscitech.2019.107779x
_version_	1685579004314124288
score	13.211869

Fatigue damage of cohesive interfaces in fiber-reinforced polymer composite laminates

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