Foam Filling Honeycomb Sandwich Structure Research Box Car Energy Absorption Properties
Energy absorption box is the first structure to collapse and absorb energy in traffic accidents,especially in low-speed collisions.Traditional energy absorption box is generally thin-walled square tube structure.With the develop-ment of design concept,the two main routes to improve energy absorption capacity are foam filling and composite sand-wich structure filling.In this paper,EPP foam is filled with hexagonal,quadrangle-like and cellular-like interlayers re-spectively to form a composite foam-filled honeycomb interlayer energy absorption box,which is studied by theoretical a-nalysis and numerical simulation with corresponding collision evaluation parameters.The results show that the energy ab-sorption capacity of the traditional energy absorption box is greatly improved,and the energy absorption characteristics of the honeycomb energy absorption box are further enhanced after foam filling.
万方数据
维普
