Coupled BE-FE Scheme for Three-Dimensional Dynamic Interaction of a Transversely Isotropic Half-Space with a Flexible Structure
The response of structures bonded to the surface of a transversely isotropic half-space (TIHS) under the effect of time-harmonic forces is investigated using a coupled FE-BE scheme. To achieve this end, a Finite Element program has been developed for frequency domain analysis of 3D structures, as th...
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| Format: | Article |
| Language: | English |
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University of Tehran Press
2017-06-01
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| Series: | Civil Engineering Infrastructures Journal |
| Subjects: | |
| Online Access: | https://ceij.ut.ac.ir/article_61821_5d8b26d8262310f22d003fcadba9fc6a.pdf |
| _version_ | 1811344008736145408 |
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| author | Ali Morshedifard Morteza Eskandari-Ghadi |
| author_facet | Ali Morshedifard Morteza Eskandari-Ghadi |
| author_sort | Ali Morshedifard |
| collection | DOAJ |
| description | The response of structures bonded to the surface of a transversely isotropic half-space (TIHS) under the effect of time-harmonic forces is investigated using a coupled FE-BE scheme. To achieve this end, a Finite Element program has been developed for frequency domain analysis of 3D structures, as the first step. The half-space underlying the structure is taken into consideration using a Boundary Element technique that incorporates half-space surface load Green’s functions for a transversely isotropic medium. Next, the two programs are combined using a direct coupling algorithm and the final program is obtained. To validate the results, some benchmark problems are solved with the FE and the BE programs, separately and then the coupled technique is checked with the results of some special cases for which the solutions are available in the literature. At the end, a parametric study is carried out on several common types of structures to study the effects of the degree of anisotropy of transversely isotropic soil medium on the dynamic behavior of the structure. Moreover, the effect of soil-structure interaction (SSI) on the natural vibration frequency of the structures is also studied. |
| first_indexed | 2024-04-13T19:39:33Z |
| format | Article |
| id | doaj.art-72725e88de084c57ad3ff65ef4fbeec6 |
| institution | Directory Open Access Journal |
| issn | 2322-2093 2423-6691 |
| language | English |
| last_indexed | 2024-04-13T19:39:33Z |
| publishDate | 2017-06-01 |
| publisher | University of Tehran Press |
| record_format | Article |
| series | Civil Engineering Infrastructures Journal |
| spelling | doaj.art-72725e88de084c57ad3ff65ef4fbeec62022-12-22T02:32:56ZengUniversity of Tehran PressCivil Engineering Infrastructures Journal2322-20932423-66912017-06-015019511810.7508/ceij.2017.01.00661821Coupled BE-FE Scheme for Three-Dimensional Dynamic Interaction of a Transversely Isotropic Half-Space with a Flexible StructureAli Morshedifard0Morteza Eskandari-Ghadi1University of TehranSchool of Civil Engineering, College of Engineering, University of Tehran, I.R. Iran.The response of structures bonded to the surface of a transversely isotropic half-space (TIHS) under the effect of time-harmonic forces is investigated using a coupled FE-BE scheme. To achieve this end, a Finite Element program has been developed for frequency domain analysis of 3D structures, as the first step. The half-space underlying the structure is taken into consideration using a Boundary Element technique that incorporates half-space surface load Green’s functions for a transversely isotropic medium. Next, the two programs are combined using a direct coupling algorithm and the final program is obtained. To validate the results, some benchmark problems are solved with the FE and the BE programs, separately and then the coupled technique is checked with the results of some special cases for which the solutions are available in the literature. At the end, a parametric study is carried out on several common types of structures to study the effects of the degree of anisotropy of transversely isotropic soil medium on the dynamic behavior of the structure. Moreover, the effect of soil-structure interaction (SSI) on the natural vibration frequency of the structures is also studied.https://ceij.ut.ac.ir/article_61821_5d8b26d8262310f22d003fcadba9fc6a.pdfboundary element methodcoupled be-fefinite element methodflexible foundationsoil-structure-interactiontransversely isotropic |
| spellingShingle | Ali Morshedifard Morteza Eskandari-Ghadi Coupled BE-FE Scheme for Three-Dimensional Dynamic Interaction of a Transversely Isotropic Half-Space with a Flexible Structure Civil Engineering Infrastructures Journal boundary element method coupled be-fe finite element method flexible foundation soil-structure-interaction transversely isotropic |
| title | Coupled BE-FE Scheme for Three-Dimensional Dynamic Interaction of a Transversely Isotropic Half-Space with a Flexible Structure |
| title_full | Coupled BE-FE Scheme for Three-Dimensional Dynamic Interaction of a Transversely Isotropic Half-Space with a Flexible Structure |
| title_fullStr | Coupled BE-FE Scheme for Three-Dimensional Dynamic Interaction of a Transversely Isotropic Half-Space with a Flexible Structure |
| title_full_unstemmed | Coupled BE-FE Scheme for Three-Dimensional Dynamic Interaction of a Transversely Isotropic Half-Space with a Flexible Structure |
| title_short | Coupled BE-FE Scheme for Three-Dimensional Dynamic Interaction of a Transversely Isotropic Half-Space with a Flexible Structure |
| title_sort | coupled be fe scheme for three dimensional dynamic interaction of a transversely isotropic half space with a flexible structure |
| topic | boundary element method coupled be-fe finite element method flexible foundation soil-structure-interaction transversely isotropic |
| url | https://ceij.ut.ac.ir/article_61821_5d8b26d8262310f22d003fcadba9fc6a.pdf |
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