3D Finite Element Modeling of Absorbing Regions for Guided Wave Scattering Problems in Composite Materials

This paper presents a three-dimensional (3D) finiteelement (FE) model of the absorbing regions for guided wave(GW) scattering in composite materials. The model is aimed atproviding an efficient and practical numerical modelingtechnique for analyzing GW propagation and scattering ininfinitely long composite structures. The reported study sought tofind the optimal configuration of the absorbing regions to not onlyminimize the wave reflection from boundaries, but also thecomputational cost. The model with the optimal absorbing regionswas then applied to investigate the GW scattering characteristicsfor different types and sizes of defects in laminated compositebeams