Progressive Failure Modeling in Nano Enhanced Fiber Metal Laminates

Abstract

: Fiber metal laminates (FMLs) combine metal layers with fiber-reinforced polymer composites to achieve superior strength-to-weight ratios, fatigue resistance, and damage tolerance. The integration of nanoscale reinforcements such as carbon nanotubes (CNTs), graphene nanoplatelets (GNPs), or nanoclays into the polymeric interlayers further enhances mechanical performance by improving interfacial bonding, energy dissipation, and crack resistance. Progressive failure modeling of nano-enhanced FMLs is critical to predict the onset and evolution of damage under complex loading conditions. This paper presents a comprehensive investigation of the progressive failure behavior of nano-enhanced FMLs using experimental characterization, multiscale modeling, and cohesive zone analysis.