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Modelling factors of square tubes in high speed bending situations

Collins, Paul K., Mullins, Jonathan G., Rolfe, Bernard and Hodgson, Peter 2007, Modelling factors of square tubes in high speed bending situations, in SAE 2007 World Congress, SAE International, Warrendale, Pa., pp. 1-6.

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Title Modelling factors of square tubes in high speed bending situations
Author(s) Collins, Paul K.
Mullins, Jonathan G.
Rolfe, BernardORCID iD for Rolfe, Bernard orcid.org/0000-0001-8516-6170
Hodgson, Peter
Conference name SAE World Congress & Exhibition (2007 : Detroit, Michigan)
Conference location Detroit, Michigan, USA
Conference dates 16-19 April 2007
Title of proceedings SAE 2007 World Congress
Editor(s) [Unknown]
Publication date 2007
Conference series SAE World Congress and Exhibition
Start page 1
End page 6
Publisher SAE International
Place of publication Warrendale, Pa.
Summary Accurate finite element crash simulations of side impact depend upon a thorough understanding of dynamic tube bending. There is a need to understand the dynamic bending mode of square sections (equivalent of automotive structural parts) to obtain a greater confidence in CAE. This work varied strain rate and material definitions, such as Cowper-Symonds vs Zerilli-Armstrong, as well as initial velocity and yield strength. The results show that most of the plastic work is done between strains rates of 30 ¿ 300/s and strains up to 0.3. Peak strain rates were marginally above 1000/s with maximum strain greater than 1. When the strain rate definition and material model were modified, it was shown that a higher yield stress produced a higher reaction force. These results would suggest that the strain rate sensitivity needs to be carefully identified for accurate crash simulations.
Notes SAE Paper 2007-01-0887 ©2007 SAE International. This paper is posted on this website with permission from SAE International. This paper may not be copied, distributed or forwarded to others for further use without permission from SAE
Language eng
Field of Research 091399 Mechanical Engineering not elsewhere classified
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category E1 Full written paper - refereed
Copyright notice ©2007, SAE International
Persistent URL http://hdl.handle.net/10536/DRO/DU:30008139

Document type: Conference Paper
Collections: Centre for Material and Fibre Innovation
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