Abstract
Ultra-molecular weight polyethylene (UHMWPE) composites are the first choice for protective systems due to their inherent characteristics. These composites are widely used in bulletproof jackets as ceramic backing and enhanced combat helmets (ECH). While the ballistic performance of UHMWPE composites is well-researched, their response to blasts has not been extensively studied. Numerical analysis is used to evaluate the impact of the geometric curvature of Dyneema HB26 composite panels when exposed to extreme loading conditions. This analysis helps to determine the behavior and performance of the composite panels under these conditions and provides insight into their suitability for use in such applications. The results of the analysis can be used to optimize the design of the composite panels and ensure that they meet the necessary safety and performance requirements for the specific application. Simulations were carried out using the Multi-Material Arbitrary Lagrangian-Eulerian (MM-ALE) method in the LS-Dyna software. A parametric study was conducted for varying curvatures of the composite panel with four different thicknesses using a validated finite element framework. The outcomes were analyzed and compared for mid-point deflection and number of damaged layers. This study helps to improve the performance of composite panels in critical defense protection systems using appropriate geometric curvature.
