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딥드로잉 공정에서 공정변수에 따른 적층순서가 다른 CR340/CFRP 복합재료의 에폭시 거동과 성형성평가
이민식(M. S. Lee),최수원(S. W. Choi),강충길(C. G. Kang) 한국소성가공학회 2014 한국소성가공학회 학술대회 논문집 Vol.2014 No.10
Recently, in automotive industry, there has been increasing demand for environment friendly materials for light-weight of vehicles to improve their safety and fuel efficiency and reduce environmental contamination. On the other hand, the weights of these types of vehicles have increased because of additional electronic devices, such as motors or batteries. To resolve these issues, it is necessary to develop parts for vehicles with good specific strength and specific stiffness. In this study, a hybrid composite material was fabricated by stacking CFRP on CR340 plates to increase the specific strength and specific stiffness instead of thick boron steel plates or DP steels, which have been used as reinforcing materials to improve the fracture toughness of the center pillar among vehicle parts.