Triple-layer Absorptive Structures for Shock Wave Blast Protection

Triple layer absorptive structure is designed to reinforce a missile silo against shock wave blasts. An energy absorbing layer and a cushion layer overlay the circular silo cover made of reinforced concrete. The dynamic stress analysis is performed by ABAQUS/Explicit. The mesoscopic structure of the energy absorbing layer is designed as an assembly of ductile tubes containing crushable cellular ceramics. Combined mesoscopic and macroscopic simulations indicate that the structure can enhance the survivability of a missile silo against blast waves.