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Absorption energy of layered structures due to impact loading

In this study, the finite element formulation for the investigation of the effects of a localized interfacial delamination on the energy absorption of the [90°/0°] laminated composite plate under impact loading is conducted. The stiffness of the laminate is determined by assembling the stiffnesses o...

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Main Author: Koo, Shi Qi
Format: Thesis
Language:English
Published: 2015
Subjects:
TA Engineering (General). Civil engineering (General)
Online Access:http://eprints.utm.my/id/eprint/53863/1/KooShiQiMFKA2015.pdf
http://eprints.utm.my/id/eprint/53863/
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spelling my.utm.538632020-09-13T09:10:49Z http://eprints.utm.my/id/eprint/53863/ Absorption energy of layered structures due to impact loading Koo, Shi Qi TA Engineering (General). Civil engineering (General) In this study, the finite element formulation for the investigation of the effects of a localized interfacial delamination on the energy absorption of the [90°/0°] laminated composite plate under impact loading is conducted. The stiffness of the laminate is determined by assembling the stiffnesses of sub-elements contributed by top and bottom laminae as well as the interface under impact loading. An introduction of an interface layer with stress- and strain- influenced material description is proposed to model a more realistic interfacial delamination. Also, the kinematically consistent mass matrix and mass proportional damping are formulated to complete the transient vibration governing expression. To simulate the interfacial degeneration of the laminate, it is defined in a localized manner in accordance with the maximum stress and strain of material under study induced by impact loading. The effects of localized interface delamination on the laminated composite plates when subjected to low velocity impact loading for various energies are investigated. Generally, the central displacement and degenerated area of interface increases as the impact energy increased. In addition, the absorption energy by the interface is rises due to higher impact energy. More realistic damaged models offer greater absorption energy compared to those undamaged. 2015-06 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/53863/1/KooShiQiMFKA2015.pdf Koo, Shi Qi (2015) Absorption energy of layered structures due to impact loading. Masters thesis, Universiti Teknologi Malaysia, Faculty of Civil Engineering. http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:86353
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TA Engineering (General). Civil engineering (General)
spellingShingle TA Engineering (General). Civil engineering (General)
Koo, Shi Qi
Absorption energy of layered structures due to impact loading
description In this study, the finite element formulation for the investigation of the effects of a localized interfacial delamination on the energy absorption of the [90°/0°] laminated composite plate under impact loading is conducted. The stiffness of the laminate is determined by assembling the stiffnesses of sub-elements contributed by top and bottom laminae as well as the interface under impact loading. An introduction of an interface layer with stress- and strain- influenced material description is proposed to model a more realistic interfacial delamination. Also, the kinematically consistent mass matrix and mass proportional damping are formulated to complete the transient vibration governing expression. To simulate the interfacial degeneration of the laminate, it is defined in a localized manner in accordance with the maximum stress and strain of material under study induced by impact loading. The effects of localized interface delamination on the laminated composite plates when subjected to low velocity impact loading for various energies are investigated. Generally, the central displacement and degenerated area of interface increases as the impact energy increased. In addition, the absorption energy by the interface is rises due to higher impact energy. More realistic damaged models offer greater absorption energy compared to those undamaged.
format Thesis
author Koo, Shi Qi
author_facet Koo, Shi Qi
author_sort Koo, Shi Qi
title Absorption energy of layered structures due to impact loading
title_short Absorption energy of layered structures due to impact loading
title_full Absorption energy of layered structures due to impact loading
title_fullStr Absorption energy of layered structures due to impact loading
title_full_unstemmed Absorption energy of layered structures due to impact loading
title_sort absorption energy of layered structures due to impact loading
publishDate 2015
url http://eprints.utm.my/id/eprint/53863/1/KooShiQiMFKA2015.pdf
http://eprints.utm.my/id/eprint/53863/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:86353
_version_ 1678592962521464832
score 13.211869

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