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Study on Compressive Behavior of Heterogeneous Al-alloy Foam by Cruciform-Hemisphere Model
Amkee Kim(김엄기),Kazi Tunvir(카지 턴비르),Sung-Jun Park(박성준),Gil-Do Jeong(정길도),Hasan(하산),Seong-Sik Cheon(전성식) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
Compressive behavior of closed cell aluminum (Al) alloy (Al-Si-Ca and Al-Si-Cu-Mg) foams having an isotropic material property was investigated by finite element (FE) analysis of a multiple lattice finite element model composed of cruciform and hemispherical sections. Different wall thickness for the hemisphere and the cruciform sections were considered in the model on the basis of micro structural examination of real foam. The simulation for Al-Si-Ca foam being ductile showed a good agreement with the experiment in the entire deformation range. However Al-Si-Ca-Mg foam being brittle in nature showed less resistance to the large deformation compared to the simulation.