Abstract
The interaction of a blast wave with a multi-layered material is investigated for the purpose of blast wave attenuation. For a fixed total mass and thickness of material, the effect of layering of the materials in the system on shock wave transmission is considered based on theoretical and experimental results. The system of materials is a discrete set of steel and low density foam plates of varying thicknesses. A wave tracking algorithm is employed to predict the behavior of the system with respect to simple wave interactions assuming elastic materials. The theoretical results are used to identify the change in wave dynamics caused by altering the distribution of the material layers. It has been shown that the time scale corresponding to stress equilibration across the high-low impedance material interfaces in the system dominates the behavior of the system and that the stress transfer is limited by the low impedance material.
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