Deformation Behaviour of Polymeric Hybrid Composite under Impact Loading.

This paper presents an experimental and finite element (FE) simulation study on back face bulge formation in p-aramid composite, ultra high molecular weight polyethylene (UHMWPE) composite and p-aramid/UHMWPE hybrid composite under normal projectile impact. The experimental evaluation revels that the back face deformation in p-aramid/UHMWPE hybrid composite has been found 75–80 % and 16–18 % lower than the back face deformation in UHMWPE and p-aramid composite respectively. The hybrid composite with UHMWPE striking faces showed 7–13 % more deformation as compared to with p-aramid striking face. The average percentage difference in finite element simulation and experimental results has been found around 10 %. Further, it has been observed almost 20 % and 38 % more deformations for the hybrid composite of UHMWPE layers at the front and middle position respectively as compared to UHMWPE layers at back end. [ABSTRACT FROM AUTHOR]