The Perforation Resistance of Aluminum-Based Thermoplastic FMLs

Abstract The perforation resistance of fibre metal laminates (FMLs) made an S-glass reinforced poly-ether-ketone-ketone (GF/PEKK) composite and aluminium alloy (2024-T3) is investigated. Initial attention focused on assessing the effect processing temperature tensile strength alloy. Here, it has shown that cycle results in a reduction approximately 35% both yield A comparison quasi-static dynamic responses FMLs highlighted rate-sensitivity these laminates, with energy increasing as loading rate varies from to impact. After testing, FML specimens were sectioned highlight prevailing failure modes. An examination cross-sections indicated impact projectile absorbed through plastic deformation tearing layers, delamination between plies layers well fracture. Finite element models (FEM), using ABAQUS/Explicit, have been developed predict behaviour subjected loading. outputs FE then validated against measured experimental force–displacement traces observed good agreement data, terms initial stiffness, maximum force displacement, mechanisms.