Evaluation of Static and Dynamic Properties of Energy Absorbers for Explosion Resistant Elements
Keywords:blast energy absorber, expanded glass, expanded ceramics, numerical simulation, blast test
This paper describes experimental investigation on the response of new advanced materials to low and high velocity load. The main aim of the experiments is to improve the behaviour of sandwich structures under dynamic loading, in particular explosion. Two types of porous raw particle materials based on expanded glass and ceramics in combination with polymeric binder were used to design a new type of blast wave energy absorber. The effect of binder amount and type of filler on the static and dynamic properties of designed materials was evaluated. Bulk density, compressive and flexural strength under quasi-static load were determined on prism specimens. Izod impact strength characteristics were evaluated as well. Numerical simulations were conducted to determine the dynamic response of the material in sandwich structure, using implicit/explicit solver LS-Dyna. As the last step, the developed material was used as the interlayer of blast resistant litter bin, and its functionality was verified by real field blast tests.
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