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http://dx.doi.org/10.7467/KSAE.2012.20.4.033

Development of Automotive Structural Part Considering the Formability of Sandwich Panel  

Choi, Won-Ho (Department of Mechanical Engineering, Graduate School, Daegu University)
Choi, Bo-Sung (Department of Mechanical Engineering, Graduate School, Daegu University)
Lee, Dug-Young (School of Mechanical and Automotive Engineering, Daegu University)
Hwang, Woo-Seok (School of Mechanical and Automotive Engineering, Daegu University)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.20, no.4, 2012 , pp. 33-38 More about this Journal
Abstract
Sandwich composite panel with high strength steel face can reduce the weight of the automotive structural parts. Unlike the parts in aerospace application, the automotive parts are made by the forming process for mass production. The CAE simulation can predict the failures caused by forces and deformation during the forming process. Since the material properties are very important factor for the simulation, we performed the tensile test to get the material properties. The inspections by the optical microscope at each strain level show the states of the polymer resin. The material properties measured by the tensile tests are used for the input data of simulation. The simulation predicts the forming process of the bumper back beam very exactly compared with the try out results.
Keywords
Sandwich composites; Sheet metal forming; Bumper back beam; Optical microscope; Tensile test;
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