Journal of Research in Mechanical Engineering and Applied Mechanics ISSN: 3107-4510 (Online)

Authors: Mashuka Jahan, Md. Shariful Islam

Abstract: Polymer products including polycarbonate (PC), polymethyl methacrylate (PMMA), and polypropylene (PP) have a variety of uses in armour, like body and face shields, helmets, armoured vehicle windows, and car bumpers. The most difficult aspect of these applications is ensuring the safety of the users. Since these materials are often subjected to impact loading, it is critical to investigate their failure under such conditions. An analytical model is built in this paper to predict the maximum impact force for low velocity impacts, and numerical simulation is used to predict the same for polypropylene materials. The low velocity impact behavior of polypropylene is investigated up to the elastic limit by using commercially available software ABAQUS 6.13.The type of the simulation was explicit. The maximum force for 20J energy was 18.01 kN and the results are close to the theoretical values.

Keywords: Polycarbonate (PC), Polymethyl methacrylate (PMMA), Polypropylene (PP)