An enriched finite element method for wave propagation analysis in discontinuous domain

Abstract eng:
In this paper a numerical method has been developed in the context of Generalized Finite Element (GFEM) method to analyse the wave propagation analysis in cracked media. The method combines the advantage of partition of unity finite element with phantom node method to investigate the problem of mechanical wave propagation in cracked domains. The Phantom Node Methodology has been implemented to specify the cracks (discontinuities) in the domain. Also, GFEM has been considered to eliminate the spurious oscillation that appear in regular FEM analysis of transient wave propagations due to numerical dispersion and Gibb’s phenomenon.

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