Modelling and Simulation of Elastic Waves in Periodic Media Using Pseudo-Incident Wave Method

Abstract eng:
The multiple interaction of inhomogeneities in periodic elastic media subjected to inplane harmonic elastic waves is studied using a pseudo-incident wave (PsIW) method, which combines the analytical solutions of single inhomogeneities with a numerical assembling process to accurately determine local stress field caused by large number of inhomogeneities. Illustrative examples under different loading and geometric conditions are presented to evaluate elastic wave propagation in such complicated media. The current method can also be potentially used to study periodic elastic metamaterial systems.

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