泡沫铝填充薄壁铝合金圆管轴向压缩性能的数值模拟

Numerical Simulation of Vertical Compressing Experiments of Thin-Walled Cylindrical Aluminum Alloy Tubes Filled with Aluminum Foam

摘要:

采用ABAQUS软件建立薄壁铝合金圆管及泡沫铝填充薄壁铝合金圆管的有限元模型, 对这2种结构的轴向压缩力学行为进行数值模拟，并且与相应的实验结果作对比。结果表明，数值模拟与实验结果基本吻合。依据薄壁铝合金圆管及泡沫铝填充薄壁铝合金圆管的应力应变图，对2种结构的力学性能做对比，发现填充泡沫铝后，层合圆管承受压力的能力大大提高

Abstract:

Finite element models of thin-walled cylindrical aluminum alloy tube and the thin-walled cylindrical aluminum alloy tube with aluminum foam filler were established by ABAQUS software. The vertical compressing mechanical behavior of the two structures was simulated numerically and the simulation results were compared with the experimental. Results show that the numerical simulation results are in good agreement with the experimental. According to the stress-strain drawings of thin-walled cylindrical aluminum alloy tube and thin-walled cylindrical aluminum alloy tube with aluminum foam filler, it is concluded that the fully foam-filled tube can endure more stress than the empty tubes