The car bumper attached to the front and rear of the car is provided to protect the body, and it will act to absorb the shock of the moment when the car collide. The resiliency and high shock absorbing force are required to do so. The purpose of this ...
The car bumper attached to the front and rear of the car is provided to protect the body, and it will act to absorb the shock of the moment when the car collide. The resiliency and high shock absorbing force are required to do so. The purpose of this paper is to design that utilizes the in-plane direction of the honeycomb adapted to the characteristics of the bumper and to compare with conventional structure. In-plnae direction of the honeycomb structure has a lower Youngs modulus than out-of-plane of it, and a flexible structure. LS-Dyna is used for finite element analysis of shock absorber, and CATIA was used for modeling for efficient analysis. The honeycomb structure has a more flexible structure, and it was confirmed that the honeycomb structure has a higher energy absorption characteristics in the study.