Dynamic Response of V-Shaped Sandwich Panel under Blast Loading

In the present work the dynamic response of the V-shaped aluminum foam sandwich panel and that of the flat panel under blast loading were simulated using the dynamic explicit algorithm based on the three-dimensional nonlinear program LS-DYNA. In our simulation the deflection of the panel faces, the core layer compression and the energy absorption of the core layer were examined with special consideration of different working conditions. The advantage of the V-shaped panel has been exhibited when in comparison with the simulation of the flat panel. When the thickness of the face is constant, the deflection of the top face, the core layer compression and the energy absorption of the core layer increase as the included angle of the V-shaped panel increases whereas, when the included angle of the V-shaped panel is constant, the deflection of the top face, the core layer compression and the energy absorption of the core layer decrease as the thickness of the face increases. The simulated results can serve as a reference for the protection design of motors and other devices.