Finite element analysis of projectile nose shapes in ballistic perforation of 2D plain woven Kevlar/epoxy composites using multi-scale modelling

Abstract

The present research deals with the finite element analysis (FEA) considering high strength Kevlar/epoxy composites as a target plate subjected to ballistic impact by varying nose-shaped projectiles. A multi-scale modelling technique has been implemented with FEA to design the intricate weave architecture. The damage properties are adopted using a user-defined function in the explicit analysis. The proposed methodology is validated by the available literature. The conical-shaped projectiles will have more damage and penetration as compared to the flat projectiles, which are studied for two plate thickness. The conical 60° and conical 90° projectiles will have better penetration to the target plate even for the increased thickness, whereas the Conical 120° and Flat projectiles will have a significant reduction in residual velocities. Also, with the increment in thickness, the energy absorption will significantly increase for Flat projectiles as compared to the conical projectiles. For lower velocities, the yarn slippage and puncturing are the major factors of failure along with fiber breakage and matrix cracking. As the velocities increased, the dominant phenomena of failure will be the linear momentum transfer.

Factors influencing the ballistic impact mechanisms of textile composite materials: a review

“…But the study fails to understand the effect of complex architecture which causes variations in the damage mechanisms. Dewangan and Panigrahi 50 studied the effect of nose shapes on 2D plain woven Kevlar/Epoxy composites for a 7.62 caliber projectiles varying the conical nose from 30° to 180° Flat using a multi‐scale modeling technique. The conical‐shaped projectiles will have more damage and penetration as compared to the flat projectiles, which are studied for two plate thickness.…”

Numerical simulation of composite materials with sisal and glass fibers for ballistic impact resistance

“…The inventive development of advanced materials has significantly improved the capabilities of bulletproof equipment. Fiber-reinforced composite materials are widely used in the field of ballistic security due to their low weight, high quality, high modulus, and high specific retention energy [4], Requests for strategies to address the ballistic response of fiber-reinforced rubber mesh composites typically include ballistic entry testing [5,6], and limited component replicas [7][8][9][10]. Improving the ballistic infiltration resistance of advanced composite materials for ballistic security is significant because it focuses on improving the mechanical properties of high-performance strands [11,12].…”

Effect of fabric structural stability on the tensile property of bidirectional angle-interlock woven composites

“…The mechanical properties of traditional 3D angle-interlock woven composites are anisotropy, which exhibit the significant differences of the mechanical properties in warp and weft directions (Dai et al., 2015). The application of 3D woven composites has gradually changed from functional materials to secondary and main load-bearing components, so higher requirements are put forward for its mechanical properties (Dewangan and Panigrahi, 2020a, 2020b; Lu et al., 2018; Pan et al., 2021). The structural stability of reinforcements in 3D woven composites has great influence on the mechanical properties (Cao et al., 2019; Long et al., 2022; Wei et al., 2021).…”