泡沫铝硅合金夹层板局部压缩特性仿真分析

Simulation Analysis of Local Compression Characteristics of Foam Aluminum Silicon Alloy Sandwich Panels

为探讨孔隙率和孔径变化影响泡沫铝硅合金夹层板局部力学性能的机理,文中分析了不同孔隙率和不同孔径对泡沫铝硅合金夹层板的局部压缩性能和能量吸收特性的影响。采用C++和ANSYS软件建立泡沫铝硅合金夹层板模型,并运用Abaqus软件进行有限元仿真模拟。结果表明,在相同孔径下,泡沫铝硅合金夹层板的弹性模量、屈服应力和吸收能量随着孔隙率的增大而减小。在相同孔隙率下,随着孔径的减小,其弹性模量、屈服强度和吸收能量随之增大。

In order to investigate the mechanism of the influence of porosity and pore size on the local mechanical properties of the foam aluminum silicon alloy sandwich panels, the proposed study analyzed the effects of different porosities and different apertures on the local compressive properties and energy absorption characteristics of the foam aluminum silicon alloy sandwich panels. The foam aluminum silicon alloy sandwich panel model was established by C++ and ANSYS, and the finite element simulation was carried out by Abaqus. The results showed that the elastic modulus, yield stress and absorbed energy of the foam aluminum silicon alloy sandwich panels decreased with the increase of porosity under the same pore size. At the same porosity, the modulus of elasticity, yield strength and energy absorption increased with the decrease of pore size.