Numerical modeling of three-dimensional open elastic waveguides combining semi-analytical finite element and perfectly matched layer methods

Perfectly Matched Layer for Finite Element Analysis of Elastic Waves in Solids

Semi-Analytical Finite Element Analysis of the Influence of Axial Loads on Elastic Waveguides

Time-Domain Finite-Element Simulation of Three-Dimensional Scattering and Radiation Problems Using Perfectly Matched Layers

An effective algorithm to construct perfectly matched layers (PMLs) for truncating time-domain finite-element meshes used in the simulation of three-dimensional (3-D) open-region electromagnetic scattering and radiation problems is presented. Both totaland scattered-field formulations are described. The proposed algorithm is based on the time-domain finite-element solution of the vector wave eq...

Perfectly Matched Layer in Numerical Wave Propagation

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Numerical interaction of boundary waves with perfectly matched layers in elastic waveguides

Perfectly matched layers (PML) are a novel technique to simulate the absorption of waves in open domains. Wave propagation in isotropic elastic waveguides has the possibility to support propagating modes with negative group velocities and long wavelengths. Propagating modes with negative group velocities can lead to temporally growing solutions in the PML. In this paper, we demonstrate that neg...