Impact Characteristic According to the Structure of Crash Box at the Vehicle

Archives of Metallurgy and Materials

Cho J.U.¹  Min B.S.¹ 

[1]Division of Mechanical & Automotive Engineering, College of Engineering, Kongju National University, 1223-24 Cheonan Daero, Seobuk-Gu, Cheonan-Si, Chungnam 31080, Korea (Republic of)

关键词: Aluminum foam;    Crash box;    Impact characteristic;    Deformation;    Stress;    Internal energy;    Durability;   

DOI  :  10.1515/amm-2017-0151

来源: DOAJ

【 摘 要 】

The crash box between a bumper and a car body in automobiles can reduce impacts for car bodies with a bumper at a low-speed collision by preventing the shocks. Also, this crash box is the part playing a very important role for the safety of vehicle and the reduction of repair cost, and many studies have been investigated for the performance. In this study, aluminum foam was inserted in an aluminum crash box to analyze the relationships of deformation, stress and internal energy. The compression characteristics are compared with six cases. In addition, the load due to displacement at experiment for a case is verified by modeling with finite elements and performing the structural analysis. As these study results for investigating characteristics of the crash box, it is thought that the effective designs of crash box to enhance the durability for collision are made possible.

【 授权许可】

Unknown