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Towards a Mathematical Model for Elastic Wave Propagation in Granular Materials
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作者 Leonardo Trujillo Vanessa Torres +1 位作者 franklin peniche Leonardo Di G. Sigalotti 《Engineering(科研)》 2012年第12期972-979,共8页
A theoretical model for the propagation of acoustic waves in dry granular media is presented within the framework of the nonlinear granular elasticity. An essential ingredient is the dependence of the elastic moduli o... A theoretical model for the propagation of acoustic waves in dry granular media is presented within the framework of the nonlinear granular elasticity. An essential ingredient is the dependence of the elastic moduli on compression. For the purpose of illustration, we analyze the case of a time-harmonic plane wave propagation under isotropic compression. We derive explicit relations for the wave speed dependence with the confining pressure. The present approach provides an accurate description of acoustic wave propagation in granular packings and represents a powerful tool to interpret the results of current experiments. 展开更多
关键词 GRANULAR MEDIA ELASTIC WAVES Nonlinear ELASTICITY HYDROSTATIC Compression GRANULAR ELASTICITY
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