Simulation of impact responses on carbon fibre composite laminates / Nurhazwani Shahirah Abd Jamil

Composites are widely used in structural applications due to their excellent mechanical performance. Despite having good mechanical properties, the composite is not exempted from damage due to low-velocity impact. Since low-velocity impact damage is undetectable and may scale down the stiffness of t...

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Main Author:	Abd Jamil, Nurhazwani Shahirah
Format:	Thesis
Language:	English
Published:	2021
Subjects:	TJ Mechanical engineering and machinery
Online Access:	https://ir.uitm.edu.my/id/eprint/60253/1/60253.pdf
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id	my-uitm-ir.60253
record_format	uketd_dc
spelling	my-uitm-ir.602532022-05-24T08:05:19Z Simulation of impact responses on carbon fibre composite laminates / Nurhazwani Shahirah Abd Jamil 2021-09 Abd Jamil, Nurhazwani Shahirah TJ Mechanical engineering and machinery Composites are widely used in structural applications due to their excellent mechanical performance. Despite having good mechanical properties, the composite is not exempted from damage due to low-velocity impact. Since low-velocity impact damage is undetectable and may scale down the stiffness of the composite laminates as well as the structure’s strength, the behavior of composite laminate after being impacted by low-velocity impact is investigated. The effects of low-velocity impact and the effects of layup sequences on carbon fibre reinforced epoxy (CFRE) composite plates were investigated numerically using FEA software, ABAQUS/Explicit. Four main layup sequences have been analyzed: CFL1 [0/90]8, CFL2 [0/90/ ± 45/ ± 45/0/90]S, CFL3 [0/90/0/90/ ± 45/ ± 45]S, and CFL4 [0/90/ ± 45/0/90/ ± 45]S and they were tested with four different impact energies: 4 J, 8 J, 12 J, and 16 J. The analysis reveals that the high impact energy leads to the larger maximum value of contact force and energy absorbed by the composite laminates. It is also apparent that there is an increment in the impact damage resistance of the quasi-isotropic laminates when the percentage of fibre orientated in the +45°/-45° direction is added to the layup sequence than the conventional fibres orientated in the 0°/90° direction only. The lowest impact resistance was obtained in the case of composite with 0°/90° ply orientation, which discloses the energy absorption and the ply orientation have a great influence over the impact behavior of the composite laminates. 2021-09 Thesis https://ir.uitm.edu.my/id/eprint/60253/ https://ir.uitm.edu.my/id/eprint/60253/1/60253.pdf text en public masters Universiti Teknologi MARA College of Engineering Murat, Bibi Intan Suraya (Dr.)
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Murat, Bibi Intan Suraya (Dr.)
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Abd Jamil, Nurhazwani Shahirah Simulation of impact responses on carbon fibre composite laminates / Nurhazwani Shahirah Abd Jamil
description	Composites are widely used in structural applications due to their excellent mechanical performance. Despite having good mechanical properties, the composite is not exempted from damage due to low-velocity impact. Since low-velocity impact damage is undetectable and may scale down the stiffness of the composite laminates as well as the structure’s strength, the behavior of composite laminate after being impacted by low-velocity impact is investigated. The effects of low-velocity impact and the effects of layup sequences on carbon fibre reinforced epoxy (CFRE) composite plates were investigated numerically using FEA software, ABAQUS/Explicit. Four main layup sequences have been analyzed: CFL1 [0/90]8, CFL2 [0/90/ ± 45/ ± 45/0/90]S, CFL3 [0/90/0/90/ ± 45/ ± 45]S, and CFL4 [0/90/ ± 45/0/90/ ± 45]S and they were tested with four different impact energies: 4 J, 8 J, 12 J, and 16 J. The analysis reveals that the high impact energy leads to the larger maximum value of contact force and energy absorbed by the composite laminates. It is also apparent that there is an increment in the impact damage resistance of the quasi-isotropic laminates when the percentage of fibre orientated in the +45°/-45° direction is added to the layup sequence than the conventional fibres orientated in the 0°/90° direction only. The lowest impact resistance was obtained in the case of composite with 0°/90° ply orientation, which discloses the energy absorption and the ply orientation have a great influence over the impact behavior of the composite laminates.
format	Thesis
qualification_level	Master's degree
author	Abd Jamil, Nurhazwani Shahirah
author_facet	Abd Jamil, Nurhazwani Shahirah
author_sort	Abd Jamil, Nurhazwani Shahirah
title	Simulation of impact responses on carbon fibre composite laminates / Nurhazwani Shahirah Abd Jamil
title_short	Simulation of impact responses on carbon fibre composite laminates / Nurhazwani Shahirah Abd Jamil
title_full	Simulation of impact responses on carbon fibre composite laminates / Nurhazwani Shahirah Abd Jamil
title_fullStr	Simulation of impact responses on carbon fibre composite laminates / Nurhazwani Shahirah Abd Jamil
title_full_unstemmed	Simulation of impact responses on carbon fibre composite laminates / Nurhazwani Shahirah Abd Jamil
title_sort	simulation of impact responses on carbon fibre composite laminates / nurhazwani shahirah abd jamil
granting_institution	Universiti Teknologi MARA
granting_department	College of Engineering
publishDate	2021
url	https://ir.uitm.edu.my/id/eprint/60253/1/60253.pdf
_version_	1783735104937394176

Simulation of impact responses on carbon fibre composite laminates / Nurhazwani Shahirah Abd Jamil

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