| 饱和多孔介质中的非均匀平面波 |
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| 引用本文： | 刘占芳,李德源,严波.饱和多孔介质中的非均匀平面波[J].岩土力学,1999,20(4):31-35. |
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| 作者姓名： | 刘占芳 李德源 严波 |
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| 作者单位： | 重庆大学建筑工程学院,400044 |
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| 摘 要： | 讨论了两相饱和多孔介质中的非均匀平面波，在所采用的多孔介质模型中，利用了每种组分的微观密度保持不变而与体积分数相关的宏观密度是变化的假设。针对理想无粘流体充填的弹性多孔固体，深入讨论了两种非均匀平面波的传播特性以及质点运动的轨迹线。
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| 关 键 词： | 多孔介质 耗散 非均匀平面波 波矢 质点运动轨迹 |
Inhomogeneous Plane Waves in a Saturated Porous Medium |
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| Liu Zhanfang,Li Deyuan,Yan Bo.Inhomogeneous Plane Waves in a Saturated Porous Medium[J].Rock and Soil Mechanics,1999,20(4):31-35. |
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| Authors: | Liu Zhanfang Li Deyuan Yan Bo |
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| Abstract: | Inhomogeneous plane waves in a ed porous medium is investigated. The porous medium is described by a model for incompressible porous media in which the microscopic density of each constituent is assumed unchangeable whereas the repective macroscopic density may chang with the volume fractions. Within the context of a forarly elastic porous solid filled with an inviscid fluid a coupled longitudinal wave and a coupled transverse wave may propagate in the medium and thed characteristics are discussed. It is shown that each coupled wave is inhomogeneous as the planes of constan phase are not parallel to the planes of constant amplitude due to the dissipative property of the medium .The trace of the particle motion for each type of waves is of elliptical polarization associated with the complex-valued amplitude vector. |
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| Keywords: | porous medium dissipation inhomogeneous plane wave wave vector particle motion trace |
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