Mechanics of Energy Absorption by Progressive Plastic Deformation of a Square Column with an Ellipsoidal Bulge Base

Thin-walled square columns are generally used as energy absorber in various applications due to their ease of fabrication and installation, high energy absorption capacity in terms of progressive plastic deformation and long stroke. However, the main drawback of a standard square column is the high...

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Main Authors:	M. A., Hassan, Amir Radzi, Ab. Ghani, Zahari, Taha, M. A., Hamdi
Format:	Article
Language:	English
Published:	Natural Science Publishing 2015
Subjects:	TS Manufactures
Online Access:	http://umpir.ump.edu.my/id/eprint/7682/ http://umpir.ump.edu.my/id/eprint/7682/ http://umpir.ump.edu.my/id/eprint/7682/1/Mechanics_of_Energy_Absorption_by_Progressive_Plastic_Deformation_of_a_Square_Column_with_an_Ellipsoidal_Bulge_Base.pdf

id	ump-7682
recordtype	eprints
spelling	ump-76822018-08-29T01:17:13Z http://umpir.ump.edu.my/id/eprint/7682/ Mechanics of Energy Absorption by Progressive Plastic Deformation of a Square Column with an Ellipsoidal Bulge Base M. A., Hassan Amir Radzi, Ab. Ghani Zahari, Taha M. A., Hamdi TS Manufactures Thin-walled square columns are generally used as energy absorber in various applications due to their ease of fabrication and installation, high energy absorption capacity in terms of progressive plastic deformation and long stroke. However, the main drawback of a standard square column is the high initial peak force. An ellipsoidal bulge base is proposed to overcome this shortcoming and at the same time to improve the crush performance. Static axial crushing were performed by finite element analysis to determine the initial peak force (IPF), crush force efficiency (CFE) and plastic specific energy absorption (SEA) of columns having ellipsoidal bulge bases with various thicknesses. It was found that the bulge base significantly enhanced the column crush performance as well as the deformation characteristics. A comparison with the plain square column was carried out and it was found that the bulge base reduced the initial peak force and increased the crush force efficiency. A simple analytical approach is proposed to predict the reduction of initial peak force with the use of this trigger mechanism Natural Science Publishing 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/7682/1/Mechanics_of_Energy_Absorption_by_Progressive_Plastic_Deformation_of_a_Square_Column_with_an_Ellipsoidal_Bulge_Base.pdf M. A., Hassan and Amir Radzi, Ab. Ghani and Zahari, Taha and M. A., Hamdi (2015) Mechanics of Energy Absorption by Progressive Plastic Deformation of a Square Column with an Ellipsoidal Bulge Base. Applied Mathematics & Information Sciences, 9. pp. 51-58. ISSN 1935-0090 http://dx.doi.org/10.12785/amis/091L06
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TS Manufactures
spellingShingle	TS Manufactures M. A., Hassan Amir Radzi, Ab. Ghani Zahari, Taha M. A., Hamdi Mechanics of Energy Absorption by Progressive Plastic Deformation of a Square Column with an Ellipsoidal Bulge Base
description	Thin-walled square columns are generally used as energy absorber in various applications due to their ease of fabrication and installation, high energy absorption capacity in terms of progressive plastic deformation and long stroke. However, the main drawback of a standard square column is the high initial peak force. An ellipsoidal bulge base is proposed to overcome this shortcoming and at the same time to improve the crush performance. Static axial crushing were performed by finite element analysis to determine the initial peak force (IPF), crush force efficiency (CFE) and plastic specific energy absorption (SEA) of columns having ellipsoidal bulge bases with various thicknesses. It was found that the bulge base significantly enhanced the column crush performance as well as the deformation characteristics. A comparison with the plain square column was carried out and it was found that the bulge base reduced the initial peak force and increased the crush force efficiency. A simple analytical approach is proposed to predict the reduction of initial peak force with the use of this trigger mechanism
format	Article
author	M. A., Hassan Amir Radzi, Ab. Ghani Zahari, Taha M. A., Hamdi
author_facet	M. A., Hassan Amir Radzi, Ab. Ghani Zahari, Taha M. A., Hamdi
author_sort	M. A., Hassan
title	Mechanics of Energy Absorption by Progressive Plastic Deformation of a Square Column with an Ellipsoidal Bulge Base
title_short	Mechanics of Energy Absorption by Progressive Plastic Deformation of a Square Column with an Ellipsoidal Bulge Base
title_full	Mechanics of Energy Absorption by Progressive Plastic Deformation of a Square Column with an Ellipsoidal Bulge Base
title_fullStr	Mechanics of Energy Absorption by Progressive Plastic Deformation of a Square Column with an Ellipsoidal Bulge Base
title_full_unstemmed	Mechanics of Energy Absorption by Progressive Plastic Deformation of a Square Column with an Ellipsoidal Bulge Base
title_sort	mechanics of energy absorption by progressive plastic deformation of a square column with an ellipsoidal bulge base
publisher	Natural Science Publishing
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/7682/ http://umpir.ump.edu.my/id/eprint/7682/ http://umpir.ump.edu.my/id/eprint/7682/1/Mechanics_of_Energy_Absorption_by_Progressive_Plastic_Deformation_of_a_Square_Column_with_an_Ellipsoidal_Bulge_Base.pdf
first_indexed	2023-09-18T22:04:32Z
last_indexed	2023-09-18T22:04:32Z
_version_	1777414620330328064

Mechanics of Energy Absorption by Progressive Plastic Deformation of a Square Column with an Ellipsoidal Bulge Base

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