流体饱和多孔弹性板中水平剪切波的弥散特性  

Dispersion Properties of Shear Horizontal Waves in Fluid-satured Porous Elastic Plate

作　　者：闫启方[1] 李娟 刘磊[1] 

机构地区：[1]信阳师范学院土木工程学院,河南信阳464000 [2]信阳市水利勘测设计院,河南信阳464000

出　　处：《信阳师范学院学报（自然科学版）》2009年第2期227-231,共5页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：上海市重点学科建设项目(Y0103)

摘　　要：研究多孔弹性板中水平剪切波的传播特性对该波在无损检测和声弹性技术范围内的工程应用有着重要的价值.在多孔介质理论的基础上,认为板为饱和多孔介质材料,由固相骨架和流相骨架组成,且固相骨架为弹性、不可压、各向同性、小变形,分析了多孔弹性板中水平剪切波的相速度、群速度随频率的变化规律,以及渗透系数对弥散特性的影响.The investigation of propagation characters of SH waves in porous plate has great value for the application in NDE and acousti-elastic techniques. The varying rule of the phase velocity and group velocity of SH waves with frequency, and the influence of permeability coefficient on dispersion properties were analyzed by the theory of porous media, and it was supposed that the plate is porous media material composed of solid phase and fluid phase, and the solid phase is elastic, incompressible, isotropy, small deformation.

关 键 词：多孔介质 水平剪切波 弥散特性 群速度 

分 类 号：O343[理学—固体力学]