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Forming Analysis of L-type Bending of Sandwich Sheet with Pyramid Core  

Lim, Sung-Jin (Department of Product Design and Manufacturing Engineering, Seoul National University of Technology)
Chung, Wan-Jin (Department of Product Design and Manufacturing Engineering, Seoul National University of Technology)
Kim, Jong-Ho (Department of Product Design and Manufacturing Engineering, Seoul National University of Technology)
Publication Information
Elastomers and Composites / v.44, no.4, 2009 , pp. 378-383 More about this Journal
Abstract
In this study, the use of a condensed model is proposed for the simulation of forming of sandwich sheet with pyramid core. A corresponding finite element analysis for L-type bending is carried out to prove the accuracy and the effectiveness. In order to improve the accuracy of forming analysis, more precise modeling of core shape and consideration of work-hardening of previous core forming are carried out. Simulation results are compared with those of experiment. Deformation shape and post-buckling behavior by simulation are in good agreement with those of experiment for the considerable range of deformation. From the comparison of force-displacement curve, it is shown that the proposed model shows good prediction of post-buckling behavior.
Keywords
sandwich sheet; pyramid core; L-bending; finite element analysis;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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