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Design Optimization of CFRP Lower Arm Using Failure Criteria
Joel Renaud Gnidakouong Ngouan,Kyongil Kong,Young-Bin Park(박영빈),Hyung Wook Park(박형욱),Jong Won Keum,Hak Soon Jeong,Young Bok Jung 한국자동차공학회 2010 한국자동차공학회 지부 학술대회 논문집 Vol.2010 No.12
In this paper, we present a design procedure attempting to replace the lower arm made of steel by a carbon fiber reinforced plastic (CFRP). We chose plain woven carbon fiber fabric and epoxy as reinforcement and matrix, respectively. Bending test simulation was performed on steel as well as on composites to determine the number of carbon fiber plies required to yield similar mechanical properties as steel. We also analyzed the composite lower arm and flexural specimens made of composites. Results showed that we need 22 plies for our composites materials to behave mechanically in the same way as steel and 73 plies to ensure their safety according to the Tsai-Wu criterion, which warrants further investigation. Reinforcement type, fiber orientation, and stacking sequence are to be optimized in the next step.