Mechanical behaviour and energy absorption performances of composite foam-filled circular tubes under axial loadings

Structural foams and foam-filled thin-walled structures have good energy absorption properties and widely been used as energy absorbers especially in automotive industries. However, great demands for composite material contribute to potential application of natural fiber and recycled material as...

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Main Author:	Subramaniyan, S Kanna
Format:	Thesis
Language:	English English English
Published:	2013
Subjects:	TA401-492 Materials of engineering and construction Mechanics of materials
Online Access:	http://eprints.uthm.edu.my/2117/1/24p%20S%20KANNA%20SUBRAMANIYAN.pdf http://eprints.uthm.edu.my/2117/2/S%20KANNA%20SUBRAMANIYAN%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/2117/3/S%20KANNA%20SUBRAMANIYAN%20WATERMARK.pdf
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spelling	my-uthm-ep.21172021-10-31T01:50:40Z Mechanical behaviour and energy absorption performances of composite foam-filled circular tubes under axial loadings 2013-01 Subramaniyan, S Kanna TA401-492 Materials of engineering and construction. Mechanics of materials Structural foams and foam-filled thin-walled structures have good energy absorption properties and widely been used as energy absorbers especially in automotive industries. However, great demands for composite material contribute to potential application of natural fiber and recycled material as foam materials to be filled into tubes. Therefore, an experimental investigation was performed to study mechanical properties and energy absorption characteristics of composite polymeric foam-filled circular tubes under quasi-static and dynamic axial loading conditions. The foam-filled thin-walled circular tube was fabricated with high strength steel as its shell and polyurethane (PU) foam as its core. The PU foam was processed with an incorporation of kenaf fiber and recycled rubber particles at 2, 4, 6, 8 and 10% composition, respectively. The PU foam was produced based on three different fixed densities such as 0.1, 0.2 and 0.3 gcm-3 . Foam compression test results indicated that composite foams with 6% filler content exhibit better mechanical properties than polyurethane foam itself. Overall, the compression strength and compression modulus was improved at 14.2% and 23.6%. Thereafter, the utilization of composite foam as filler for circular tubes has enhanced energy absorption performance of the tubes. The energy absorption capacity of composite foam-filled circular tube is higher than that of polyurethane foam-filled tubes. The crush characteristic of PU composite foam-filled tubes follows the favorable progressive collapse modes. Overall, results of the research indicate that PU composite foam with optimum 6% filler content effectively increases the foam mechanical behavior and its function as filler for tubes provides better energy absorption capacity under axial crushing events. 2013-01 Thesis http://eprints.uthm.edu.my/2117/ http://eprints.uthm.edu.my/2117/1/24p%20S%20KANNA%20SUBRAMANIYAN.pdf text en public http://eprints.uthm.edu.my/2117/2/S%20KANNA%20SUBRAMANIYAN%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/2117/3/S%20KANNA%20SUBRAMANIYAN%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Fakulti Kejuruteraan Mekanikal dan Pembuatan
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TA401-492 Materials of engineering and construction Mechanics of materials
spellingShingle	TA401-492 Materials of engineering and construction Mechanics of materials Subramaniyan, S Kanna Mechanical behaviour and energy absorption performances of composite foam-filled circular tubes under axial loadings
description	Structural foams and foam-filled thin-walled structures have good energy absorption properties and widely been used as energy absorbers especially in automotive industries. However, great demands for composite material contribute to potential application of natural fiber and recycled material as foam materials to be filled into tubes. Therefore, an experimental investigation was performed to study mechanical properties and energy absorption characteristics of composite polymeric foam-filled circular tubes under quasi-static and dynamic axial loading conditions. The foam-filled thin-walled circular tube was fabricated with high strength steel as its shell and polyurethane (PU) foam as its core. The PU foam was processed with an incorporation of kenaf fiber and recycled rubber particles at 2, 4, 6, 8 and 10% composition, respectively. The PU foam was produced based on three different fixed densities such as 0.1, 0.2 and 0.3 gcm-3 . Foam compression test results indicated that composite foams with 6% filler content exhibit better mechanical properties than polyurethane foam itself. Overall, the compression strength and compression modulus was improved at 14.2% and 23.6%. Thereafter, the utilization of composite foam as filler for circular tubes has enhanced energy absorption performance of the tubes. The energy absorption capacity of composite foam-filled circular tube is higher than that of polyurethane foam-filled tubes. The crush characteristic of PU composite foam-filled tubes follows the favorable progressive collapse modes. Overall, results of the research indicate that PU composite foam with optimum 6% filler content effectively increases the foam mechanical behavior and its function as filler for tubes provides better energy absorption capacity under axial crushing events.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Subramaniyan, S Kanna
author_facet	Subramaniyan, S Kanna
author_sort	Subramaniyan, S Kanna
title	Mechanical behaviour and energy absorption performances of composite foam-filled circular tubes under axial loadings
title_short	Mechanical behaviour and energy absorption performances of composite foam-filled circular tubes under axial loadings
title_full	Mechanical behaviour and energy absorption performances of composite foam-filled circular tubes under axial loadings
title_fullStr	Mechanical behaviour and energy absorption performances of composite foam-filled circular tubes under axial loadings
title_full_unstemmed	Mechanical behaviour and energy absorption performances of composite foam-filled circular tubes under axial loadings
title_sort	mechanical behaviour and energy absorption performances of composite foam-filled circular tubes under axial loadings
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Fakulti Kejuruteraan Mekanikal dan Pembuatan
publishDate	2013
url	http://eprints.uthm.edu.my/2117/1/24p%20S%20KANNA%20SUBRAMANIYAN.pdf http://eprints.uthm.edu.my/2117/2/S%20KANNA%20SUBRAMANIYAN%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/2117/3/S%20KANNA%20SUBRAMANIYAN%20WATERMARK.pdf
_version_	1747830909824925696

Mechanical behaviour and energy absorption performances of composite foam-filled circular tubes under axial loadings

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