MULTI LAYER TYPE IMPACT RESISTANCE PANNEL AND THE MAKING METHOD OF IT

摘要

PURPOSE: A multi-layered impact-resistant panel and a designing method thereof are provided to increase the lifespan of a structure since four kinds of stacked lightweight materials absorb different types of impact energy. CONSTITUTION: A multi-layered impact-resistant panel(10) comprises an aluminum or aluminum alloy surface layer(11), an aluminum-foam intermediate layer(12), a rubber layer(13), and a composite layer(14). The surface layer is located outermost side of the panel. If the panel is shot, the surface layer is damaged and the kinetic energy of bullet is absorbed. The intermediate layer disperses and absorbs impact energy transferred through the surface layer and controls high-frequency energy. The rubber layer controls the energy of low frequency component due to impact. The composite layer absorbs impact energy and inhibits the penetration of shrapnel.