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International Journal of Automotive Technology > Volume 18(4); 2017 > Article
International Journal of Automotive Technology 2017;18(4): 625-630.
doi: https://doi.org/10.1007/s12239-017-0062-0
TOPOLOGICALLY OPTIMIZED SHAPE OF CFRP FRONT LOWER CONTROL ARM
SangHyuk Yoo, Jaehyeok Doh, Juhee Lim, Ohsung Kang, Jongsoo Lee, Keonwook Kang
Yonsei University
ABSTRACT
This study shows topology optimization of lower control arm (LCA), made of carbon fiber reinforced plastic (CFRP), that was originally composed of aluminum alloy. By mean-field homogenization (MFH) method, averaged mechanical properties of CFRP are applied to FEM analyses of 3D LCA model. The design target is to reduce the LCA weight while satisfying the multiple constraints including required stiffness and durability conditions at the same time. As a result, authors propose the new design of CFRP LCA with 30 % weight reduction compared to Al alloy LCA.
Key Words: Topology optimization, Lower control arm, Carbon fiber reinforced plastic, Mean-field homogenization
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