Physics – Classical Physics
Scientific paper
2008-06-16
Ultrasonic wave propagation in non homogeneous media, Alain Leger & MarC Deschamps (Ed.) (2009) 183-194
Physics
Classical Physics
Article following the fifth meeting of GdR 2501 (CNRS)
Scientific paper
Propagation of monochromatic elastic waves across cracks is investigated in 1D, both theoretically and numerically. Cracks are modeled by nonlinear jump conditions. The mean dilatation of a single crack and the generation of harmonics are estimated by a perturbation analysis, and computed by the harmonic balance method. With a periodic and finite network of cracks, direct numerical simulations are performed and compared with Bloch-Floquet's analysis.
Lombard Bruno
Piraux Joël
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