The impact energy absorption characteristics of the double structure filled with foam material

Abstract

In the case of automobiles, the high initial peak force value sometimes causes harm to the occupants. In the case of a rockfall guard fence, the rope that receives it on the first surface and converts it in the axial direction of the pillar will be cut. The most efficient way to absorb energy in a car collision or kinetic energy of falling rocks is to crush the column structure in the axial direction. In order to achieve high energy absorption characteristics efficiently and while suppressing weight increase, it is examined whether the energy absorption capacity of the foam-filled double structure has sufficient collision energy absorption performance.