Study on Ballistic Characteristics of Glass-Epoxy-Rubber Sandwiches

Abstract:

This article focuses on the Finite Element (FE) analysis of the ballistic performance of the polymer composites consisting of natural rubber (NR), glass-epoxy (GE) and glass-rubber-epoxy (GRE) sandwich of different thicknesses (3, 6 and 9 mm) under the impact of the conical nose projectile for a velocity variation of (180, 220 and 260 m / s). FE modeling was carried out in direction to forecast the energy absorption, ballistic limit velocity and failure damage mode of the target materail. The significant influence of thickness, interlayer and sandwiching effect was studied: the lowest ballistic limit was obtained for 3 mm thick GE. Energy absorption capacity of GRE sandwich was highest among the natural rubber and GE. In future, the work can be extended for the experimental validation purpose, so that these polymer composite materials could be utilized to defence sector for bullet-proofing.

• Periodical: Materials Science Forum (Volume 978)
• Pages: 245-249
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.978.245
• Online since: February 2020
• Authors: Rajole Sangamesh*, Hiremath Shivashankar, K.S. Ravishankar, S.M. Kulkarni
• Keywords: Composite, Energy Absorption, Epoxy, Glass-Rubber-Epoxy, High Velocity Impact, Rubber

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