格构腹板增强泡沫夹芯复合材料静压试验研究

Lattice web enhanced foam sandwich composite materials samples were prepared through vacuum infusion molding process, and the compression tests of samples were done. Then analysis the structural parameters influence on the compressive strength, buckling bearing capacity and energy absorption characteristics. The results indicate that: the compressive strength, buckling bearing capacity and energy absorption characteristics of web enhanced foam sandwich composite materials are much better than those foam sandwich composite materials without enhanced web. The web thickness and spacing have a significant impact on the compressive strength, buckling bearing capacity and energy absorption characteristics, and the density of the foam core material and the web height have smaller influence on those properties.