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Title: A 2.5D coupled FE-BE methodology for the dynamic interaction between longitudinally invariant structures and a layered halfspace
Authors: Fran├žois, Stijn ×
Schevenels, Mattias
Galvín, Pedro
Lombaert, Geert
Degrande, Geert #
Issue Date: 2010
Publisher: Elsevier science sa
Series Title: Computer methods in applied mechanics and engineering vol:199 issue:23-24 pages:1536-1548
Abstract: This paper presents a general 2.5D coupled finite element-boundary element methodology for the computation of the dynamic interaction between a layered soil and structures with a longitudinally invariant geometry, such as railway tracks, roads, tunnels, dams, and pipelines. The classical 2.5D finite element method is combined with a novel 2.5D boundary element method. A regularized 2.5D boundary integral equation is derived that avoids the evaluation of singular traction integrals. The 2.5D Green's functions of a layered halfspace, computed with the direct stiffness method, are used in a boundary element method formulation. This avoids meshing of the free surface and the layer interfaces with boundary elements and effectively reduces the computational efforts and storage requirements. The proposed technique is applied to four examples: a road on the surface of a halfspace, a tunnel embedded in a layered halfspace, a dike on a halfspace and a vibration isolating screen in the soil. (C) 2010 Elsevier B.V. All rights reserved.
URI: 
ISSN: 0045-7825
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Structural Mechanics Section
Department of Civil Engineering - miscellaneous
× corresponding author
# (joint) last author

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