泡沫铝夹芯板弯曲行为的仿真模拟

Simulation of bending behavior of aluminum foam sandwich panel

通过建立泡沫铝夹芯板模型,选用ABAQUS软件分析泡沫铝孔隙率和夹芯板面板厚度对准静态三点弯曲和吸能性能的影响。模拟分析发现:当面板厚度和泡沫铝孔径一定时,泡沫铝夹芯板的承载能力随着泡沫铝孔隙率的减小而增大,吸收的总能量与孔隙率的大小并无线性关系;当泡沫铝孔隙率和孔径一定时,泡沫铝夹心板的承载的能力随面板厚度的增加而增大,吸收的总能量增大。

Through establishing the model of foam aluminum sandwich panel,ABAQUS software was selected to analyze the influence of foam aluminum porosity and sandwich panel thickness on the quasi-static three-point bending and energy absorption performance.The simulation analysis shows that when the thickness of the panel and the pore diameter of foam aluminum are fixed,the bearing capacity of foam aluminum sandwich panel increases with the decrease of the porosity of foam aluminum,and the total energy absorbed is unrelated to the size of the porosity.When the porosity and pore diameter of foam aluminum are fixed,the bearing capacity of foam aluminum sandwich panel increases with the increase of panel thickness,and the total energy absorbed increases.