쉘형 차체 구조의 소재대체 개념설계에 대한 경량화 예측 기법

Weight-reduction prediction for the conceptual design of carbody with shell type sections using the material substitution technique

In this paper is studied a theoretical approach to predict structural performances and weight reduction rates of a car-body with shell type sections in case that its materials have to be substituted. For the material substitution design of a car-body, bending, axial and twisting deformations are considered under constant stiffness and strength conditions, which utilize some new indices derived from a structural performance point of view. The developed indices to measure the weight reduction by the material substitution give good guidelines on conceptual design of car-bodies.