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Author:
Journal / Book Title:
Year:
Volume:
Issue:
Propagation of Plane Waves in Poroviscoelastic Anisotropic Media
Author(s):
A Kwaxishi
,
M Dxiama
,
WU Chengping
Pages:
1037
-
1047
Year:
2008
Issue:
9
Journal:
APPLIED MATHEMATICS AND MECHANICS
Keyword:
非均质波
;
各向异性
;
多孔粘弹性固体
;
相速度
;
衰减
;
Abstract:
讨论了弹性多孔介质中波的传播的(或许是)最一般的模型,考虑的介质是粘弹性的、各向异性的、多孔固体骨架,其各向异性可渗透的孔隙中充满着粘性液体.考虑一般类型的各向异性,并且介质中的衰减波作为非均质波处理.对介质中4种衰减波中的每一种,将复慢矢量分解定义为相速度、均质衰减、非均质衰减和衰减角.用一个无量纲参数来度量非均质波与其均质波的区别.利用北海沙岩的数值模型,分析传播方向、非均质参数、频率范围、各向异性对称性、骨架滞弹性和孔隙流体粘度,对该类介质中波传播特性的影响.
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