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A Study on Fracture Characteristic of Aluminum Foam by Thickness

두께에 따른 알루미늄 폼의 파괴 특성에 관한 연구

  • Gao, Teng (Dept. of Mechanical Engineering, Graduate School, Kongju University Nat'l Univ.) ;
  • Cho, Jae Ung (Div. of Mechanical and Automotive Engineering, Kongju Nat'l Univ.)
  • 고등 (공주대학교 대학원 기계공학과) ;
  • 조재웅 (공주대학교 기계자동차공학부)
  • Received : 2015.03.29
  • Accepted : 2015.05.07
  • Published : 2015.10.01

Abstract

Because foam metal has the excellent physical characteristics and mechanical performance, they are applied extensively into a lot of advanced technology areas. The aluminum foam with closed cell is one of the foam metals. It is applied widely into automobile and airplane because of the excellent absorption performance of impact energy. In this study, the mechanical characteristics by thickness was analyzed through the impact experiment of closed-cell aluminum foam, and the simulation analysis was performed for the verification. As the simulation analysis method, a finite-element analysis was carried under the same boundary conditions as the experiment by using ANSYS. By comparing with the results of experiment and simulation, it was thought that the case of thickness of 20mm was the most efficient of among the cases of thicknesses of 10mm, 20mm and 30mm. At the case of thickness of 20mm, the absorption energy by comparing with the specimen thickness is shown to become the most among three models. By using the result of this study, it is thought that it can apply the material necessary to develop the mechanical structure with aluminum foam.

Keywords

Aluminum Foam;Closed Cell;Foam Metal;Finite Element Analysis;Thickness

Acknowledgement

Supported by : 공주대학교

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