Low-Velocity Impact Response Of Thermoplastic Honeycomb Core Sandwich Structure With Aluminium Face Sheet

The low-velocity impact response of thermoplastic honeycomb core sandwich structure with aluminium face sheet was investigated by conducting a series of drop-weight impact tests on a range of temperatures and thickness considered. By using an instrumented drop-weight impact tower, the impact energy...

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Main Author:	Sawal, Nurashikin
Format:	Thesis
Language:	English
Published:	2011
Subjects:	TN260 Mining engineering
Online Access:	http://eprints.usm.my/46095/1/NURASHIKIN%20BINTI%20SAWAL_HJ.pdf
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id	my-usm-ep.46095
record_format	uketd_dc
spelling	my-usm-ep.460952020-02-06T01:12:46Z Low-Velocity Impact Response Of Thermoplastic Honeycomb Core Sandwich Structure With Aluminium Face Sheet 2011-12 Sawal, Nurashikin TN260 Mining engineering The low-velocity impact response of thermoplastic honeycomb core sandwich structure with aluminium face sheet was investigated by conducting a series of drop-weight impact tests on a range of temperatures and thickness considered. By using an instrumented drop-weight impact tower, the impact energy were varied according to variation of drop heights. In this study, a simple energy-balance model was used to predict the impact response of the sandwich structure which accounts for energy absorption in bending, shear and contact deformations. For each test, the resulting impact force was used as an indicator to determine the impact response of the sandwich structure which the value obtained from the experiment were compared to those calculated from the model. The maximum impact force for a given impact energy was found to be increase with core and face sheet thickness but decreases with increasing temperature.Mechanical tests such as flexural and compression tests were also conducted in this study in order to determine the flexural and compression properties of the sandwich structure. The results found that both flexural modulus and strength were rate-insensitive over the range of crosshead displacement rate. By using the energy-balance model, the agreement between the experimental value and theoretical value was found to be good with a small scatter of data in the maximum impact force values. Damage and failure modes from the test were observed by using naked eye and optical microscope in order to determine the types of damage occured and the impact damage area of the structure. 2011-12 Thesis http://eprints.usm.my/46095/ http://eprints.usm.my/46095/1/NURASHIKIN%20BINTI%20SAWAL_HJ.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Kejuruteraan Bahan & Sumber Mineral
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	TN260 Mining engineering
spellingShingle	TN260 Mining engineering Sawal, Nurashikin Low-Velocity Impact Response Of Thermoplastic Honeycomb Core Sandwich Structure With Aluminium Face Sheet
description	The low-velocity impact response of thermoplastic honeycomb core sandwich structure with aluminium face sheet was investigated by conducting a series of drop-weight impact tests on a range of temperatures and thickness considered. By using an instrumented drop-weight impact tower, the impact energy were varied according to variation of drop heights. In this study, a simple energy-balance model was used to predict the impact response of the sandwich structure which accounts for energy absorption in bending, shear and contact deformations. For each test, the resulting impact force was used as an indicator to determine the impact response of the sandwich structure which the value obtained from the experiment were compared to those calculated from the model. The maximum impact force for a given impact energy was found to be increase with core and face sheet thickness but decreases with increasing temperature.Mechanical tests such as flexural and compression tests were also conducted in this study in order to determine the flexural and compression properties of the sandwich structure. The results found that both flexural modulus and strength were rate-insensitive over the range of crosshead displacement rate. By using the energy-balance model, the agreement between the experimental value and theoretical value was found to be good with a small scatter of data in the maximum impact force values. Damage and failure modes from the test were observed by using naked eye and optical microscope in order to determine the types of damage occured and the impact damage area of the structure.
format	Thesis
qualification_level	Master's degree
author	Sawal, Nurashikin
author_facet	Sawal, Nurashikin
author_sort	Sawal, Nurashikin
title	Low-Velocity Impact Response Of Thermoplastic Honeycomb Core Sandwich Structure With Aluminium Face Sheet
title_short	Low-Velocity Impact Response Of Thermoplastic Honeycomb Core Sandwich Structure With Aluminium Face Sheet
title_full	Low-Velocity Impact Response Of Thermoplastic Honeycomb Core Sandwich Structure With Aluminium Face Sheet
title_fullStr	Low-Velocity Impact Response Of Thermoplastic Honeycomb Core Sandwich Structure With Aluminium Face Sheet
title_full_unstemmed	Low-Velocity Impact Response Of Thermoplastic Honeycomb Core Sandwich Structure With Aluminium Face Sheet
title_sort	low-velocity impact response of thermoplastic honeycomb core sandwich structure with aluminium face sheet
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Kejuruteraan Bahan & Sumber Mineral
publishDate	2011
url	http://eprints.usm.my/46095/1/NURASHIKIN%20BINTI%20SAWAL_HJ.pdf
_version_	1747821609443393536

Low-Velocity Impact Response Of Thermoplastic Honeycomb Core Sandwich Structure With Aluminium Face Sheet

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