Numerical and experimental evaluation of the mechanical behavior of Kevlar/glass fiber reinforced epoxy hybrid composite
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DOI 10.1007/s12206-020-1019-1
Journal of Mechanical Science and Technology 34 (11) 2020 Original Article DOI 10.1007/s12206-020-1019-1 Keywords: · Drop weight testing · Flexural test · Hybrid composite · Numerical simulation · Tensile test
Numerical and experimental evaluation of the mechanical behavior of Kevlar/glass fiber reinforced epoxy hybrid composites Muhammad Nabeel1, Muhammad Ali Nasir1, Mariyam Sattar2, Rizwan Ahmed Malik3, Meshal Alzaid4, Muhammad Shoaib Butt5, Mohsin Saleem5 and Hussein Alrobei6 1
Correspondence to: Rizwan Ahmed Malik [email protected]; Hussein Alrobei [email protected]
Citation: Nabeel, M., Nasir, M. A., Sattar, M., Malik, R. A., Alzaid, M., Butt, M. S., Saleem, M., Alrobei, H. (2020). Numerical and experimental evaluation of the mechanical behavior of Kevlar/glass fiber reinforced epoxy hybrid composites. Journal of Mechanical Science and Technology 34 (11) (2020) 4613~4619. http://doi.org/10.1007/s12206-020-1019-1
Received April 20th, 2020 Revised
July 9th, 2020
Accepted August 14th, 2020
Department of Mechanical Engineering, University of Engineering and Technology (UET), Taxila 47050, 2 Pakistan, Department of Mechanical Engineering, Institute of Space Technology, Islamabad, Pakistan, 3 Department of Metallurgy and Materials Engineering, University of Engineering and Technology (UET), 4 Taxila 47050, Pakistan, Physics Department, College of Science, Jouf University, Al-Jouf, Sakaka, 2014, 5 Saudi Arabia, School of Chemical and Materials Engineering, National University of Sciences and Tech6 nology (NUST), Islamabad 44000, Pakistan, Department of Mechanical Engineering, College of Engineering, Prince Sattam bin Abdul Aziz University, AlKharj 11942, Saudi Arabia
Abstract Flexural, tensile, and impact strength of hybrid Kevlar/glass reinforced epoxy composite is studied. Six different types of hybrid composite material were manufactured by hand layup process using different compositions of Kevlar and glass fiber. Tensile, flexural and impact strengths of manufactured samples were investigated using standard tests and compared. It is observed that tensile strength is greater for combinations with higher percentage (%) of Kevlar fabric and decreases with an increase in the glass fabric %age. Flexural strength is higher for combinations with greater %age of glass fabric and decreases with an increase in the Kevlar fabric %age. From drop weight test, it is found from visual inspection that damaged area is increased with an increase in the glass fabric percentage. Numerical simulation model incorporated with elastoplastic material data successfully predicts tensile and flexural experimental results.
† Recommended by Editor Chongdu Cho
1. Introduction
© The Korean Society of Mechanical Engineers and Springer-Verlag GmbH Germany, part of Springer Nature 2020
The composites materials are used due to superior mechanical properties of the fibers such as; higher strength to weight ratio, excellent tensile strength, higher stiffness and higher damage resistance [1, 2]. But
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