Title: Ballistic Properties of Polypropylene and Epoxy Based Glass Fiber Reinforced Composites: Experiments and Modeling
Authors: Saikanth Paruchuru, and German Reyes-Villanueva
Abstract: In this paper, the ballistic properties of polypropylene and epoxy based glass fiber reinforced composites were investigated. Specimens based on woven Shield Strand S®/epoxy and E-glass fiber/polypropylene (Twintex®) were manufactured and prepared for testing under high velocity impact loading conditions. Experiments were performed using a single stage gas gun with spherical and sharp head steel projectiles. A high-speed non-contact strain measurement system was used to reveal global and localized 3D deformations, strain evolution and localization as well as failure mechanisms. Impact velocities ranged from 50 m/s to 175 m/s in order to determine the ballistic limit of each system. Experimental results were in very good agreement with the predictions offered by a numerical model. In addition, a clear relation between composite system, ballistic limit, and, failure mechanisms was highlighted.
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Conference: SAMPE 2019 - Charlotte, NC
Publication Date: 2019/05/20
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