Low Velocity Impact and Compression after Impact Properties on Gamma Irradiated Kevlar/Oil Palm Empty Fruit Bunch Hybrid Composites

This work investigates the dynamic impact response of Kevlar/oil palm empty fruit bunch (EFB) hybrid composite structures with/without gamma radiation under low velocity impact (LVI) and compression after impact (CAI) test. The layering pattern Kevlar/oil palm EFB/Kevlar (K/OP/K) was applied in this...

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Bibliographic Details
Published in:Coatings (Basel) 2020-07, Vol.10 (7), p.646
Main Authors: Muhammad Amir, Siti Madiha, Hameed Sultan, Mohamed Thariq, Md Shah, Ain Umaira, Jawaid, Mohammad, Safri, Syafiqah Nur Azrie, Mohd, Shukri, Mohd Salleh, Khairul Anuar
Format: Article
Language:English
Subjects:
Aramid fiber reinforced plastics
Carbon fibers
Composite materials
Composite structures
Compression tests
Compressive strength
Curing
Energy
Epoxy resins
Gamma irradiation
Gamma rays
Hybrid composites
Impact resistance
Impact response
Impact strength
Kevlar (trademark)
Layering
Radiation dosage
Residual strength
Studies
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Summary:This work investigates the dynamic impact response of Kevlar/oil palm empty fruit bunch (EFB) hybrid composite structures with/without gamma radiation under low velocity impact (LVI) and compression after impact (CAI) test. The layering pattern Kevlar/oil palm EFB/Kevlar (K/OP/K) was applied in this work. Irradiation with gamma ray with various doses were applied from 25–150 kGy. LVI results shows that hybrid Kevlar/oil palm EFBs (Kevlar/OPEFB) that were not irradiated have greater impact resistance as compared to irradiated hybrid Kevlar/OPEFB. It was also observed that the hybridization of Kevlar/OPEFB with gamma irradiation helped to improve the compressive residual strength of the composites. It was found that Kevlar/OPEFB hybrid composites with the layering sequence K/OP/K can withstand up to 35 J of impact energy, with the optimum gamma radiation dose at 50 kGy.
ISSN:2079-6412
2079-6412
DOI:10.3390/coatings10070646