Detailed Structural Analysis of Joint Part between Composite Carbody and Metal Underframe

복합재 차체와 금속 언더프레임 접합부의 상세구조해석

In development of a composite carbody tilting train, the structural safety is especially emphasized on the joint part between composite carbody and metal underfame because it is directly related to the safety of passengers. In this paper, detailed structural analysis including bending and compression was performed for the proposed designs of the joint part, so stress distribution and maximum deflection were obtained and compared to each other. Based on the results of initial designs, modified ones were suggested and the same analysis procedure as before was followed, through which we could confirm the excellence of new design.