Failure analysis of woven Kevlar/Epoxy under uniaxial tension

Rahimi, Norzihan and Hussain, Ahmad Kamil and Shaik Dawood, Mohd. Sultan Ibrahim and Mohd Alias, Adib Zulfadhli and Md Yusoff, Muhamed Hafiy Afiq and Mahmud, Jamaluddin (2018) Failure analysis of woven Kevlar/Epoxy under uniaxial tension. International Journal of Engineering and Technology(UAE), 7 (4). pp. 235-239. ISSN 2227-524X

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Abstract

The increasing demand for newer materials with versatile properties such as high strength-to-weight ratio; has made fiber reinforced composite materials a favourable choice in various applications, particularly in the automotive, aerospace, marine, sports and defense industries. Moreover, the properties of a composite material could be tailored for specific functions or applications. Despite its many attractive features, composite material fails in a complex manner involving matrix failure, fiber failure and delamination. This failure behaviour needs to be well established. The objective of this study is to perform failure analysis on a woven Kevlar/Epoxy composite laminate subjected to uniaxial tension and establish its failure trend. The lamination sequence is (θ4/θ4/-θ4)S where the angle, θ, ranges from 0° to 90°. The failure analysis was carried out using a commercial finite element software, Ansys and comparisons were made using analytical methods (Matlab). The values of stresses were computed and Maximum Stress Theory was employed to check for failure. The trend of failure, in terms of the failure curves (normalized first ply failure and last ply failure loads), for woven Kevlar/Epoxy was established. This study had produced new failure datas for woven Kevlar/Epoxy and thus, contributes significant knowledge about the failure behaviour of composite materials.

Item Type:	Article (Journal)
Additional Information:	4147/70238
Uncontrolled Keywords:	Kevlar/epoxy, composite laminate, failure analysis, Ansys, Matlab.
Subjects:	T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction T Technology > TJ Mechanical engineering and machinery
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	Dr. Mohamed Sultan Ibrahim Shaik Dawood
Date Deposited:	28 Jan 2019 15:23
Last Modified:	28 Jan 2019 15:23
URI:	http://irep.iium.edu.my/id/eprint/70238

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