On the influence of the probabilistic microstructural characteristics of glass fiber‐reinforced composites on the wave propagation in GLARE

In an attempt to reduce the crack propagation speed in structures made of fiber-reinforced composites metal layers are added laminate forming a new group materials, so-called fiber laminates. GLARE, combination glass polymer and aluminum, is well-known frequently used aeronautical industry. One major drawback such materials their susceptibility impact damage, which not detectable by visual inspections. Hence, adequate structural health monitoring technique detect interlaminar damage like delaminations essential for components from approach here use guided ultrasonic waves because they travel long distances without substantial damping cover whole thickness thin-walled structures. However, probabilistic microstructure causes continuous mode conversion wave guides composites. This significantly influences signal processing as consequence, interpretation captured time signals. phenomenon induced random spatial distribution fibers matrix material, leading ongoing excitation modes within propagating S0 mode. this research, effect studied GLARE 3/2-0.4. Therefore, transverse YOUNG's modulus represented homogeneous second-order GAUSSian fields. Afterwards, simulated numerically. The results reveal that only observable but also at top bottom surface hence, isotropic layers. holds both perpendicular orientation