Effects of cell wall property on compressive performance of aluminum foams

摘要: Abstract The effects of cell wall property on the compressive performance high porosity, closed-cell aluminum foams prepared by gas injection method were investigated. research was conducted both experimentally and numerically. Foam specimens from conditioned melt tested under uniaxial loading condition. microstructure fracture observed through optical microscope (OM) scanning electron (SEM), which indicates that is impaired defects in walls oxide films surface. Subsequently, finite element (FE) models based three-dimensional thin shell Kelvin tetrakaidecahedron developed mechanical properties raw material solid are determined using experimental measurements. simulation results show plateau stress nominal stress–strain curve exhibits a linear relationship with yield strength material. higher than data, partly owing to substitution for process establishment FE models.