An investigation into the effect of cross-ply on energy storage and vibration characteristics of carbon fiber lattice sandwich structure bionic prosthetic foot

Abstract Made a pioneering attempt to use the lattice sandwich structure in prosthetic foot design and pioneered study for lay-up of foot. An innovative carbon fiber bionic was designed using structure. The effect cross-ply on foot’s energy storage properties vibration characteristics investigated finite element model constructed under normal working conditions according international standards. results indicate that strain increases with an increase heel-strict conditions. Under toe-off condition, distribution cross-ply. number influences mode displacement natural frequencies