Author/Authors :
Xu, Tao School of Mechanical Science and Engineering - Jilin University, Changchun, China , Liu, Nian School of Mechanical Science and Engineering - Jilin University, Changchun, China , Yu, Zhenglei School of Mechanical Science and Engineering - Jilin University, Changchun, China , Xu, Tianshuang School of Mechanical Science and Engineering - Jilin University, Changchun, China , Zou, Meng School of Mechanical Science and Engineering - Jilin University, Changchun, China
Abstract :
Many materials in nature exhibit excellent mechanical properties. In this study, we evaluated the bionic bumper structure models by using nonlinear finite element (FE) simulations for their crash worthiness under full-size impact loading. The structure contained the structural characteristics of cattail and bamboo. The results indicated that the bionic design enhances the specific energy absorption (SEA) of the bumper. The numerical results showed that the bionic cross-beam and bionic box of the bionic bumper have a significant effect on the crash worthiness of the structure. The crush deformation of bionic cross-beam and box bumper model was reduced by 33.33%, and the total weight was reduced by 44.44%. As the energy absorption capacity under lateral impact, the bionic design can be used in the future bumper body.
