비중량 기계적 물성치를 이용한 하이브리드형 차체 모델의 경량화 평가 연구

초록

In this paper, we estimated the weight-reduction rate of a hybrid-type bodyshell for several engineering materials using specific stiffness and strength indices. For evaluating the weight-reduction rate of a hybrid box-type model in a given condition, we used a theoretical approach and verified it with finite-element analysis. We obtained a good correlation between both the results. The suggested approach can be applied to the weight reduction design of hybrid bodyshells by material substitution. The specific mechanical properties to estimate the weight-reduction can be utilized as good criteria for material substitution of hybrid bodyshells at the basic-design stage.