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A 2.5D coupled FEM-BEM-MFS methodology for longitudinally invariant soil-structure interaction problems

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Postprint publicació Hassan Liravi a Computers and Geotechnics (1,210Mb) (Restricted access)   Request copy 

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10.1016/j.compgeo.2021.104009
 
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hdl:2117/346906

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Liravi, HassanMés informacióMés informació
Arcos Villamarín, RobertMés informacióMés informacióMés informació
Ghangale, Dhananjay
Noori, BehshadMés informacióMés informació
Romeu Garbí, JordiMés informacióMés informacióMés informació
Document typeArticle
Defense date2021-04
PublisherElsevier
Rights accessRestricted access - publisher's policy (embargoed until 2023-04-01)
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
ProjectMODELO COMPUTACIONAL RAPIDO DE CALCULO DE VIBRACIONES Y RUIDO RERADIADO INDUCIDAS POR EL FERROCARRIL (AEI-RTI2018-096819-B-I00)
Abstract
This paper is concerned with a new prediction methodology for longitudinally invariant soil-structure interaction problems in elastodynamics. The method uses the finite-element method to model the structure, the boundary-element method to model the local soil surrounding the structure and the method of fundamental solutions to model the wave propagation through the soil, all of them formulated in the two-and-a-half dimensional domain. The proposed method firstly obtains the displacement field on the soil-structure interaction boundary making use of a two-and-a-half dimensional coupled finite element–boundary element method. The method of fundamental solutions is used then as a post-processing tool to compute the response of the soil, increasing the computational efficiency of the overall methodology with respect to a methodology that considers the boundary element method as a model of the wave propagation through the soil. The accuracy of the methodology is verified for four calculation examples: a solid cylinder and a circular thin shell embedded in a homogeneous full-space and also in a homogeneous half-space. This verification is performed comparing the results with available analytical or semi-analytical solutions and a conventional two-and-a-half dimensional coupled finite element–boundary element method. Furthermore, a control methodology to increase the robustness of the method is presented.
CitationLiravi, H. [et al.]. A 2.5D coupled FEM-BEM-MFS methodology for longitudinally invariant soil-structure interaction problems. "Computers and geotechnics", Abril 2021, vol. 132, núm. 104009, p. 1-17. 
URIhttp://hdl.handle.net/2117/346906
DOI10.1016/j.compgeo.2021.104009
ISSN0266-352X
Publisher versionhttps://www.sciencedirect.com/science/article/abs/pii/S0266352X21000124
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  • Departament d'Enginyeria mecànica - Articles de revista [486]
  • Doctorat en Enginyeria Mecànica, Fluids i Aeronàutica - Articles de revista [94]
  • LEAM - Laboratori d'Enginyeria Acústica i Mecànica - Articles de revista [55]
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