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http://dx.doi.org/10.5000/EESK.2005.9.4.067

Two-Dimensional Infinite Element for Dynamic Analysis of Saturated Two-Phase Soil  

Kim, Jae-Min (여수대학교 건설환경공학부)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.9, no.4, 2005 , pp. 67-74 More about this Journal
Abstract
This paper presents a new infinite element for modeling far-field region in dynamic analysis of a fluid-saturated two-phase medium. The infinite element method combined to the infinite element method has been effectively applied to several engineering problems where the full space or half-space medium should be modeled. However, the currently available infinite element for dynamic analysis of two-phase porous medium has a limitation that Pl and P2 waves can only be Included in shape function expressing behavior ol the body. In this paper, the infinite element method is extended to simulate arbitrary number of multi-component waves. For this purpose, the far-field of the porous medium is assumed to be a layered half-space, while the near-field Includes structures as well as irregular soil medium. The accuracy and effectiveness of the proposed element have demonstrated using 1-D and 2-D wave propagation problems.
Keywords
two-phase soil; infinite element; infinite element; dynamic analysis; wave propagation;
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