Abstract
Energy absorbing capabilities of a metallic hybrid sandwiched composite measuring 80 mm × 80 mm × 15 mm, consisting of cellular spiral structured core, subjected to impact loads is investigated using ANSYS explicit dynamics. The composite face sheet is made of Epoxy S-glass, the core is made of high-density Polyethylene (HDPE) and the metallic face sheet is made of AL-6061 T6. The sandwiched metallic hybrid composite is penetrated using a spherical indenter of 15 mm diameter whose impact velocity ranges from 75 m/s to 250 m/s. The energy absorption rate and percentage energy are determined at different time intervals ranging from 100 µs to 250 µs. The influence of the variation of the cell thickness and face sheet thickness is also studied. The percentage energy absorption and rate of energy absorption is determined and compared at different velocities.
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