Numerical modeling of acoustic emission sources and wave propagation in concrete

In the present paper acoustic emission (AE) source modeling and calculation of elastic wave propagation in concrete is performed by using the elastodynamic finite integration technique (EFIT). It is demonstrated how various AE volume and dislocation sources (e.g. volume expan-sion, tension cracks, shear cracks) can be implemented by using equivalent body forces as ex-pressed by the corresponding moment tensor. We also present first application results by calcu-lating elastic wave propagation due to AE sources in a reinforced concrete specimen. We de-scribe how numerical modeling techniques like EFIT can be used to test and optimize localiza-tion algorithms and moment tensor inversion in heterogeneous media.