Application of Image Processing to Predict Compressive Behavior of Aluminum Foam

Archives of Metallurgy and Materials

Hyup Jae Chung¹  Sanghoon Kim²  Kyongyop Rhee² 

[1] CAE Technology Group, Production Engineering Center, LS Cable 27,Gongdan-ro 140beon-gil, Gunpo-si, Gyeonggi-do 453-831 Korea;Department of Mechanical Engineering, KyungHee University, Yongin, Korea

关键词: Keywords: Aluminum foam;    Compute tomography (CT) image;    Finite element method (FEM);   

DOI  :  10.1515/amm-2016-0108

学科分类：金属与冶金

来源: Akademia Gorniczo-Hutnicza im. Stanislawa Staszica / University of Mining and Metallurgy

【 摘 要 】

An image processing technique was used to model the internal structure of aluminum foam in finite element analysis in order to predict the compressive behavior of the material. Finite element analysis and experimental tests were performed on aluminum foam with densities of 0.2, 0.25, and 0.3 g/cm3. It was found that although the compressive strength predicted from the finite element analysis was higher than that determined experimentally, the predicted compressive stress-strain curves exhibited a tendency similar to those determined from experiments for both densities. However, the behavior of the predicted compressive stress-strain curves was different from the experimental one as the applied strain increased. The difference between predicted and experimental stress-strain curves in a high strain range was due to contact between broken aluminum foam walls by the large deformation.

【 授权许可】

Unknown