Failure analysis of woven kevlar/epoxy composite laminates under compression due to variations in fiber orientation

Studies have shown that the angle of fiber orientation significantly affects the mechanical properties of a composite laminate. Although investigations on the properties of the composite material have been conducted, there is still a lack of studies related to Kevlar/Epoxy laminate. Therefore, this...

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Published in:Journal of Physics: Conference Series
Main Author: Mali M.; Hussain A.K.; Muzafar M.A.; Zainol A.F.M.; Mahmud J.
Format: Conference paper
Language:English
Published: Institute of Physics Publishing 2019
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85077794928&doi=10.1088%2f1742-6596%2f1349%2f1%2f012050&partnerID=40&md5=31366d6064ef6c2b1199f9c057a30bb2
id 2-s2.0-85077794928
spelling 2-s2.0-85077794928
Mali M.; Hussain A.K.; Muzafar M.A.; Zainol A.F.M.; Mahmud J.
Failure analysis of woven kevlar/epoxy composite laminates under compression due to variations in fiber orientation
2019
Journal of Physics: Conference Series
1349
1
10.1088/1742-6596/1349/1/012050
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85077794928&doi=10.1088%2f1742-6596%2f1349%2f1%2f012050&partnerID=40&md5=31366d6064ef6c2b1199f9c057a30bb2
Studies have shown that the angle of fiber orientation significantly affects the mechanical properties of a composite laminate. Although investigations on the properties of the composite material have been conducted, there is still a lack of studies related to Kevlar/Epoxy laminate. Therefore, this study aims to investigate the effects of the angle of fiber orientation to woven Kevlar/Epoxy laminates under a compression state. The study was conducted in two stages comprising of numerical validation and failure analysis. Maximum Stress Theory and Tsai-Wu Failure criteria were selected for the failure prediction. The laminates were made of 24 layers woven Kevlar/epoxy and the stacking sequence was (θ4/0<4-θ4)s. The angle of fiber orientation, θ, was varied from 0° to 90° and failure loads for both flat plate and flat plate with circular hole were determined. The trend of displacement and failure behaviour for both type of plates were compared. From the results, it is found that the effects of the fiber angle on the plate with circular hole are more significant than the flat. Therefore, it can be reasoned that the current study is useful in contributing significant knowledge to better understand the failure behaviour of composite plate. © Published under licence by IOP Publishing Ltd.
Institute of Physics Publishing
17426588
English
Conference paper
All Open Access; Gold Open Access
author Mali M.; Hussain A.K.; Muzafar M.A.; Zainol A.F.M.; Mahmud J.
spellingShingle Mali M.; Hussain A.K.; Muzafar M.A.; Zainol A.F.M.; Mahmud J.
Failure analysis of woven kevlar/epoxy composite laminates under compression due to variations in fiber orientation
author_facet Mali M.; Hussain A.K.; Muzafar M.A.; Zainol A.F.M.; Mahmud J.
author_sort Mali M.; Hussain A.K.; Muzafar M.A.; Zainol A.F.M.; Mahmud J.
title Failure analysis of woven kevlar/epoxy composite laminates under compression due to variations in fiber orientation
title_short Failure analysis of woven kevlar/epoxy composite laminates under compression due to variations in fiber orientation
title_full Failure analysis of woven kevlar/epoxy composite laminates under compression due to variations in fiber orientation
title_fullStr Failure analysis of woven kevlar/epoxy composite laminates under compression due to variations in fiber orientation
title_full_unstemmed Failure analysis of woven kevlar/epoxy composite laminates under compression due to variations in fiber orientation
title_sort Failure analysis of woven kevlar/epoxy composite laminates under compression due to variations in fiber orientation
publishDate 2019
container_title Journal of Physics: Conference Series
container_volume 1349
container_issue 1
doi_str_mv 10.1088/1742-6596/1349/1/012050
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85077794928&doi=10.1088%2f1742-6596%2f1349%2f1%2f012050&partnerID=40&md5=31366d6064ef6c2b1199f9c057a30bb2
description Studies have shown that the angle of fiber orientation significantly affects the mechanical properties of a composite laminate. Although investigations on the properties of the composite material have been conducted, there is still a lack of studies related to Kevlar/Epoxy laminate. Therefore, this study aims to investigate the effects of the angle of fiber orientation to woven Kevlar/Epoxy laminates under a compression state. The study was conducted in two stages comprising of numerical validation and failure analysis. Maximum Stress Theory and Tsai-Wu Failure criteria were selected for the failure prediction. The laminates were made of 24 layers woven Kevlar/epoxy and the stacking sequence was (θ4/0<4-θ4)s. The angle of fiber orientation, θ, was varied from 0° to 90° and failure loads for both flat plate and flat plate with circular hole were determined. The trend of displacement and failure behaviour for both type of plates were compared. From the results, it is found that the effects of the fiber angle on the plate with circular hole are more significant than the flat. Therefore, it can be reasoned that the current study is useful in contributing significant knowledge to better understand the failure behaviour of composite plate. © Published under licence by IOP Publishing Ltd.
publisher Institute of Physics Publishing
issn 17426588
language English
format Conference paper
accesstype All Open Access; Gold Open Access
record_format scopus
collection Scopus
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