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Auto generation of the center of gravity of tubular structures during crush deformation

Displacement of the center of gravity (COG) of tubular structures with various polygonal cross-sections is numerically investigated under an axial crush using the program code of ANSYS/LS-DYNA. A subroutine is developed using this code to calculate the COG of the deformed shape, during and after the...

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Main Authors: Hosseinabadi, Reza Afshar, Ali, Aidy, Sahari, Barkawi
Format: Article
Language:English
Published: World Scientific Publishing 2009
Online Access:http://psasir.upm.edu.my/id/eprint/13336/1/Auto%20generation%20of%20the%20center%20of%20gravity%20of%20tubular%20structures%20during%20crush%20deformation.pdf
http://psasir.upm.edu.my/id/eprint/13336/
http://www.worldscientific.com/doi/abs/10.1142/S021987620900170X?journalCode=ijcm
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spelling my.upm.eprints.133362016-01-26T02:20:31Z http://psasir.upm.edu.my/id/eprint/13336/ Auto generation of the center of gravity of tubular structures during crush deformation Hosseinabadi, Reza Afshar Ali, Aidy Sahari, Barkawi Displacement of the center of gravity (COG) of tubular structures with various polygonal cross-sections is numerically investigated under an axial crush using the program code of ANSYS/LS-DYNA. A subroutine is developed using this code to calculate the COG of the deformed shape, during and after the crush. The effect of wall thickness on displacement of the COG is also investigated. Displacement of the COG decreases as the number of edges increases; it is a reasonable symmetric-deformed shape for the number of edges beyond eight. An even number of edges leads to a more symmetric displacement of the COG. The effect of the number of polygonal edges on symmetric deformation of the COG becomes more prominent as the initial wall thickness decreases. The higher number of edges stabilizes the deformed shape and the value of the mass moment of inertia of the deformed shape about the y axis (Iyy). The value of the mass moment of inertia about the x-z axes (Ixz) in comparison with I yy can be neglected in the case of dealing with an axial crush along the y direction. World Scientific Publishing 2009 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/13336/1/Auto%20generation%20of%20the%20center%20of%20gravity%20of%20tubular%20structures%20during%20crush%20deformation.pdf Hosseinabadi, Reza Afshar and Ali, Aidy and Sahari, Barkawi (2009) Auto generation of the center of gravity of tubular structures during crush deformation. International Journal of Computational Methods, 6 (2). pp. 333-348. ISSN 0219-8762; ESSN: 1793-6969 http://www.worldscientific.com/doi/abs/10.1142/S021987620900170X?journalCode=ijcm 10.1142/S021987620900170X
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Displacement of the center of gravity (COG) of tubular structures with various polygonal cross-sections is numerically investigated under an axial crush using the program code of ANSYS/LS-DYNA. A subroutine is developed using this code to calculate the COG of the deformed shape, during and after the crush. The effect of wall thickness on displacement of the COG is also investigated. Displacement of the COG decreases as the number of edges increases; it is a reasonable symmetric-deformed shape for the number of edges beyond eight. An even number of edges leads to a more symmetric displacement of the COG. The effect of the number of polygonal edges on symmetric deformation of the COG becomes more prominent as the initial wall thickness decreases. The higher number of edges stabilizes the deformed shape and the value of the mass moment of inertia of the deformed shape about the y axis (Iyy). The value of the mass moment of inertia about the x-z axes (Ixz) in comparison with I yy can be neglected in the case of dealing with an axial crush along the y direction.
format Article
author Hosseinabadi, Reza Afshar
Ali, Aidy
Sahari, Barkawi
spellingShingle Hosseinabadi, Reza Afshar
Ali, Aidy
Sahari, Barkawi
Auto generation of the center of gravity of tubular structures during crush deformation
author_facet Hosseinabadi, Reza Afshar
Ali, Aidy
Sahari, Barkawi
author_sort Hosseinabadi, Reza Afshar
title Auto generation of the center of gravity of tubular structures during crush deformation
title_short Auto generation of the center of gravity of tubular structures during crush deformation
title_full Auto generation of the center of gravity of tubular structures during crush deformation
title_fullStr Auto generation of the center of gravity of tubular structures during crush deformation
title_full_unstemmed Auto generation of the center of gravity of tubular structures during crush deformation
title_sort auto generation of the center of gravity of tubular structures during crush deformation
publisher World Scientific Publishing
publishDate 2009
url http://psasir.upm.edu.my/id/eprint/13336/1/Auto%20generation%20of%20the%20center%20of%20gravity%20of%20tubular%20structures%20during%20crush%20deformation.pdf
http://psasir.upm.edu.my/id/eprint/13336/
http://www.worldscientific.com/doi/abs/10.1142/S021987620900170X?journalCode=ijcm
_version_ 1643825301497577472
score 13.211869

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