Abstract
Environmental pollution and energy consumption problems today are seriously affecting people’s lives. In this paper, a new magnesium AZ31B matrix syntactic foam (MMSF) prepared by gravity penetration with hollow alumina microspheres as reinforcement was simulated using ANSYS Workbench for the lightweight design of vehicles. The mechanical properties and heat conductivity of MMSFs prepared by hollow microspheres with different diameters and volume fractions before and after heat treatment were investigated using finite element analysis. The simulation results showed that the MMSF prepared by hollow microspheres with a diameter of 3.6 mm and a volume fraction of 40% had the best mechanical properties and heat conductivity after heat treatment strengthening. Due to low density, high strength, excellent thermal insulation and other advantages, this high-performance MMSF is suitable for making vehicle bodies, which can effectively reduce the overall weight, thus reducing the fuel consumption and pollutant emission caused by driving.
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