Validation of low velocity impact on a biocomposite flat plate laminates

Impact analysis under low velocity was carried out on flat plate structure at normal and oblique impact with energy level of 3J to 9J with interval of 3J. Utilization of natural fiber reinforced with polymer and hybridizing it with synthetic fiber were introduced. The aim of the study was to asse...

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Main Author:	Mohd Jamal, Qistina
Format:	Thesis
Language:	English
Published:	2016
Subjects:	Aerospace engineering Speed - Measurement Airplanes - Speed
Online Access:	http://psasir.upm.edu.my/id/eprint/67067/1/FK%202016%20175%20IR.pdf
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id	my-upm-ir.67067
record_format	uketd_dc
spelling	my-upm-ir.670672019-02-19T00:14:15Z Validation of low velocity impact on a biocomposite flat plate laminates 2016-12 Mohd Jamal, Qistina Impact analysis under low velocity was carried out on flat plate structure at normal and oblique impact with energy level of 3J to 9J with interval of 3J. Utilization of natural fiber reinforced with polymer and hybridizing it with synthetic fiber were introduced. The aim of the study was to assess the effects of low velocity impact on biocomposite structure composed of chopped strand mat (CSM) glass fiber, kenaf fiber and hybrid of both materials and epoxy as resin material. Drop weight impact test of flat plate structure and determination of mechanical characterization were carried out with samples prepared under vacuum infusion method for glass/epoxy, kenaf/epoxy and hybrid composites composed of those two material. Glass/epoxy composites exhibit better mechanical properties as compared to kenaf/epoxy composites. From the experimental work, it was found that the impact energy level influenced the impact peak force proportionately. Hybrid composites generates damage propagation with combination of damage propagation from individual fiber of glass and kenaf reinforced polymer. The severity of damage was high at higher impact energy although significant damage at impact energy of 3J was detected under drop weight impact test where internal damage on all three configurations had occurred which further suggested reduction in residual strength. Finite element analysis was then carried out for flat plate model of all three configurations and validated against the experimental work. It was found that validation on all configurations meet the agreement with experimental results. Further finite element analysis considered all configuration based on the validation results for flat plate on oblique impact. The influence of impact angle was found to affect the maximum impact force of the impacted material where at higher impact energy the respond of maximum impact force was significant. However, there is slightly impact damage detected at lower impact energies under oblique impact. Aerospace engineering Speed - Measurement Airplanes - Speed 2016-12 Thesis http://psasir.upm.edu.my/id/eprint/67067/ http://psasir.upm.edu.my/id/eprint/67067/1/FK%202016%20175%20IR.pdf text en public masters Universiti Putra Malaysia Aerospace engineering Speed - Measurement Airplanes - Speed
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
topic	Aerospace engineering Speed - Measurement Airplanes - Speed
spellingShingle	Aerospace engineering Speed - Measurement Airplanes - Speed Mohd Jamal, Qistina Validation of low velocity impact on a biocomposite flat plate laminates
description	Impact analysis under low velocity was carried out on flat plate structure at normal and oblique impact with energy level of 3J to 9J with interval of 3J. Utilization of natural fiber reinforced with polymer and hybridizing it with synthetic fiber were introduced. The aim of the study was to assess the effects of low velocity impact on biocomposite structure composed of chopped strand mat (CSM) glass fiber, kenaf fiber and hybrid of both materials and epoxy as resin material. Drop weight impact test of flat plate structure and determination of mechanical characterization were carried out with samples prepared under vacuum infusion method for glass/epoxy, kenaf/epoxy and hybrid composites composed of those two material. Glass/epoxy composites exhibit better mechanical properties as compared to kenaf/epoxy composites. From the experimental work, it was found that the impact energy level influenced the impact peak force proportionately. Hybrid composites generates damage propagation with combination of damage propagation from individual fiber of glass and kenaf reinforced polymer. The severity of damage was high at higher impact energy although significant damage at impact energy of 3J was detected under drop weight impact test where internal damage on all three configurations had occurred which further suggested reduction in residual strength. Finite element analysis was then carried out for flat plate model of all three configurations and validated against the experimental work. It was found that validation on all configurations meet the agreement with experimental results. Further finite element analysis considered all configuration based on the validation results for flat plate on oblique impact. The influence of impact angle was found to affect the maximum impact force of the impacted material where at higher impact energy the respond of maximum impact force was significant. However, there is slightly impact damage detected at lower impact energies under oblique impact.
format	Thesis
qualification_level	Master's degree
author	Mohd Jamal, Qistina
author_facet	Mohd Jamal, Qistina
author_sort	Mohd Jamal, Qistina
title	Validation of low velocity impact on a biocomposite flat plate laminates
title_short	Validation of low velocity impact on a biocomposite flat plate laminates
title_full	Validation of low velocity impact on a biocomposite flat plate laminates
title_fullStr	Validation of low velocity impact on a biocomposite flat plate laminates
title_full_unstemmed	Validation of low velocity impact on a biocomposite flat plate laminates
title_sort	validation of low velocity impact on a biocomposite flat plate laminates
granting_institution	Universiti Putra Malaysia
publishDate	2016
url	http://psasir.upm.edu.my/id/eprint/67067/1/FK%202016%20175%20IR.pdf
_version_	1747812438793781248

Validation of low velocity impact on a biocomposite flat plate laminates

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