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Theoretical and Numerical Analysis on Material-Stiffness Characteristics for Thin-Walled Beams on Vehicles

[+] Author Affiliations
Xiao Han, Wenbin Hou, Ping Hu

Dalian University of Technology, Dalian, Liaoning, China

Paper No. DETC2011-47420, pp. 471-477; 7 pages
  • ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 2: 31st Computers and Information in Engineering Conference, Parts A and B
  • Washington, DC, USA, August 28–31, 2011
  • Conference Sponsors: Design Engineering Division and Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5479-2
  • Copyright © 2011 by ASME


In order to study the lightweight effect of different materials on vehicle, we first took the two-end-fixed thin-walled beam as the research object and the Stiffness Mass Efficient as the corresponding criterion. According to the FEM simulation with four different materials conducted on thin-walled beam, the theoretical conclusion was proved coincident with the numerical one. Focusing on vehicle body-in-white, its material of beams was chosen as a variable in FEM analysis, and the relation between material attributes and body stiffness was acquired. It is noted that the magnesium-silicon alloy and the Pan-Base Carbon Fiber Reinforced Composite can achieve better lightweight effect than that of mild steel, while the classic aluminum alloy can not realize lightweight without necessary structural optimization.

Copyright © 2011 by ASME



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