Comparison between a multiple scattering method and direct numerical simulations for elastic wave propagation in concrete
Numerical simulations are performed to study the propagation of elastic waves in a 2-D random heterogeneous medium such as concrete. To reduce spurious numerical artefacts to a negligible level, a fourth-order time-domain numerical scheme and an immersed interface method are used together. Effective properties of the equivalent homogeneous medium are extracted and compared to the predictions of a multiple scattering method (ISA), to evaluate the validity of this latter.
KeywordsPhase Velocity Direct Numerical Simulation Rayleigh Wave Elastic Wave Propagation Acquisition Setup
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