Effect of fiber bridging in composites healing

Extrinsic non-autonomic self-healing of composite material is elucidated in two cases of crack, one of them has bridging phenomena which has been created during sample formation and the other has normal crack without bridging. Experiments for mode I composite fracture failure was carried out on a do...

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Main Authors: M. Elhadary, A. Hamdy, W. Shaker
Format: Article
Language:English
Published: Elsevier 2022-04-01
Series:Alexandria Engineering Journal
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1110016821005172
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author M. Elhadary
A. Hamdy
W. Shaker
author_facet M. Elhadary
A. Hamdy
W. Shaker
author_sort M. Elhadary
collection DOAJ
description Extrinsic non-autonomic self-healing of composite material is elucidated in two cases of crack, one of them has bridging phenomena which has been created during sample formation and the other has normal crack without bridging. Experiments for mode I composite fracture failure was carried out on a double cantilever beam (DCB) specimen. An open wooden mould technique was used to manufacture the test specimen which was made of unidirectional E-glass fiber and polyester resin. In both cases, healing required some form of manual intervention, with the healing agent being manually catalysed and then injected into the delamination. Before and after healing, an experimental study of the function of fibre bridging was conducted. Before and after the healing process, samples with and without bridging were compared. The average healing efficiency of non-bridging specimens is 101%, with a maximum healing efficiency of 113.5%, while the average healing efficiency of bridging specimens is 112.4%, with a maximum healing efficiency of 132.6%. The results show the great role of crossing fiber in bridging cases, which increases the efficiency of crack healing, so the transcendence of bridging healing is obvious.
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spelling doaj.art-ec4183aed5ec46d9a8be65f7a58d26f22022-12-22T00:04:59ZengElsevierAlexandria Engineering Journal1110-01682022-04-0161427692774Effect of fiber bridging in composites healingM. Elhadary0A. Hamdy1W. Shaker2Department of Mechanical Engineering, Faculty of Engineering, Alexandria University, Alexandria, EgyptDepartment of Mechanical Engineering, Faculty of Engineering, Alexandria University, Alexandria, EgyptDepartment of Mechanical Engineering, Faculty of Engineering, Alexandria University, Alexandria, EgyptExtrinsic non-autonomic self-healing of composite material is elucidated in two cases of crack, one of them has bridging phenomena which has been created during sample formation and the other has normal crack without bridging. Experiments for mode I composite fracture failure was carried out on a double cantilever beam (DCB) specimen. An open wooden mould technique was used to manufacture the test specimen which was made of unidirectional E-glass fiber and polyester resin. In both cases, healing required some form of manual intervention, with the healing agent being manually catalysed and then injected into the delamination. Before and after healing, an experimental study of the function of fibre bridging was conducted. Before and after the healing process, samples with and without bridging were compared. The average healing efficiency of non-bridging specimens is 101%, with a maximum healing efficiency of 113.5%, while the average healing efficiency of bridging specimens is 112.4%, with a maximum healing efficiency of 132.6%. The results show the great role of crossing fiber in bridging cases, which increases the efficiency of crack healing, so the transcendence of bridging healing is obvious.http://www.sciencedirect.com/science/article/pii/S1110016821005172BridgingHealingGlass fiberCompositesDelaminationFracture toughness
spellingShingle M. Elhadary
A. Hamdy
W. Shaker
Effect of fiber bridging in composites healing
Alexandria Engineering Journal
Bridging
Healing
Glass fiber
Composites
Delamination
Fracture toughness
title Effect of fiber bridging in composites healing
title_full Effect of fiber bridging in composites healing
title_fullStr Effect of fiber bridging in composites healing
title_full_unstemmed Effect of fiber bridging in composites healing
title_short Effect of fiber bridging in composites healing
title_sort effect of fiber bridging in composites healing
topic Bridging
Healing
Glass fiber
Composites
Delamination
Fracture toughness
url http://www.sciencedirect.com/science/article/pii/S1110016821005172
work_keys_str_mv AT melhadary effectoffiberbridgingincompositeshealing
AT ahamdy effectoffiberbridgingincompositeshealing
AT wshaker effectoffiberbridgingincompositeshealing