An experimental and simulation approach to understand shock attenuation in layered heterogeneous targets

An experimental and simulation approach to understand shock attenuation in layered heterogeneous targets (Prof. Amar Agarwal, Earth Science)

A shock wave may attenuate by (i) geometric scattering, (ii) scattering due to reflection and refractions at the heterogeneities, and (iii) deformating the target. The overall aim of these projects is to understand the behaviour of shock waves travelling through a heterogeneous and layered medium. In this project we are setting up 2D hydrocode simulations to understand the material deformation and behaviour of shock waves (reflections, and positive and negative superposition) at material heterogeneities and layer boundaries. Experimental verification using high velocity (~1.8 km/s) plate impacts will be used to produce parallel shock front, and the microstructural deformation, at the porosity and layer boundaries will be studied.