Smart Self-Sensing Piezoresistive Composite Materials for Structural Health Monitoring

The use of fiber-reinforced composite materials has widely spread in various sectors, including aerospace, defense, and civil industry. assessment these heterogeneous material systems is important for safer risk-free applications contributed to the need self-sensing composites. This work focused on development piezoresistive composites, prediction their performance structural health monitoring (SHM). Additionally, this unpacks complexity carbon nanotubes (CNTs) micro-fabrication electromagnetic (EM) waves detection electrodes. Scanning electron microscopy (SEM) was used characterize CNTs structure morphologies. manufactured were incorporated epoxy fabricate glass fiber reinforced polymer (GFRP)-CNTs smart composites with properties. micro-damage onset its progression carried out mode I, evaluate sensitivity damage development. change electrical conductivity nanotubes-reinforced due localized mechanical strains enabled crack propagation detection. relationship between propagation, fracture toughness, resistivity analyzed.