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首页> 外文期刊>Zeitschrift fur Angewandte Mathematik und Mechanik >Monochromatic waves in saturated porous materials with anisotropic permeability
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Monochromatic waves in saturated porous materials with anisotropic permeability

机译:各向异性渗透率的饱和多孔材料中的单色波

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摘要

In the paper we investigate the propagation conditions of monochromatic waves in a saturated poroelastic material described by a generalization of Biot's equations. This generalization concerns anisotropic properties of the permeability. Mechanical properties of the system are assumed to be described by isotropic constitutive relations but the permeability is given in terms of a tensor of tortuosity. In particular we analyze the propagation in one of the principal directions of this tensor. For this particular monochromatic wave we show the existence of the purely transversal wave. We prove the existence of two modes of such waves and investigate their behavior as functions of the frequency. A practical application in nondestructive testing of anisotropic materials is indicated.
机译:在本文中,我们研究了由Biot方程的泛化描述的饱和多孔弹性材料中单色波的传播条件。这种概括涉及渗透率的各向异性特性。假定系统的机械性能由各向同性本构关系描述,但渗透率以曲折张量表示。特别是,我们分析了该张量的主要方向之一上的传播。对于这种特定的单色波,我们显示了纯横向波的存在。我们证明了这种波的两种模式的存在,并研究了它们作为频率函数的行为。指出了在各向异性材料的无损检测中的实际应用。

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