Dynamic Response of a Poroelastic Half-Space with Semi-Permeable Surface Subjected to Time-Harmonic Vertical Load

Abstract:

Based on Biot’s elastodynamic theory for poroelastic media, the dynamic response of a poroelastic half-space due to a time-harmonic concentrated vertical load applied at the free surface is investigated. Different from previous treatments of the free surface as either fully permeable or fully impermeable, the free surface of a pororelastic half-space is treated in this study as a more realistic semi-permeable boundary condition, i.e. the permeability of the free surface is considered. The governing equation for axisymmetric motion of a poroelastic half-space is solved by applying the Hankel integral transform. Numerical results are presented to show the effects of semi-permeable boundary condition on the dynamic response of poroelastic half-space.

• Periodical: Advanced Materials Research (Volumes 594-597)
• Pages: 2757-2762
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.594-597.2757
• Online since: November 2012
• Authors: Xi Luo, Xian Wei Zeng, Li Qun Tang
• Keywords: Dynamic Response, Half Space, Poroelasticity, Semi-Permeable Surface

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