On the validation of a numerical model for the analysis of soil-structure interaction problems
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/184020 |
Resumo: | Modeling and simulation of mechanical response of structures, relies on the use of computational models. Therefore, verification and validation procedures are the primary means of assessing accuracy, confidence and credibility in modeling. This paper is concerned with the validation of a three dimensional numerical model based on the finite element method suitable for the dynamic analysis of soil-structure interaction problems. The soil mass, structure, structure’s foundation and the appropriate boundary conditions can be represented altogether in a single model by using a direct approach. The theory of porous media of Biot is used to represent the soil mass as a two-phase material which is considered to be fully saturated with water; meanwhile other parts of the system are treated as one-phase materials. Plasticity of the soil mass is the main source of non-linearity in the problem and therefore an iterative-incremental algorithm based on the Newton- Raphson procedure is used to solve the nonlinear equilibrium equations. For discretization in time, the Generalized Newmark-β method is used. The soil is represented by a plasticity-based, effective- stress constitutive model suitable for liquefaction. Validation of the present numerical model is done by comparing analytical and centrifuge test results of soil and soil-pile systems with those results obtained with the present numerical model. A soil-pilestructure interaction problem is also presented in order to shown the potentiality of the numerical tool. |
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Tamayo, Jorge Luis PalominoAwruch, Armando Miguel2018-10-27T03:12:20Z20161679-7825http://hdl.handle.net/10183/184020001079005Modeling and simulation of mechanical response of structures, relies on the use of computational models. Therefore, verification and validation procedures are the primary means of assessing accuracy, confidence and credibility in modeling. This paper is concerned with the validation of a three dimensional numerical model based on the finite element method suitable for the dynamic analysis of soil-structure interaction problems. The soil mass, structure, structure’s foundation and the appropriate boundary conditions can be represented altogether in a single model by using a direct approach. The theory of porous media of Biot is used to represent the soil mass as a two-phase material which is considered to be fully saturated with water; meanwhile other parts of the system are treated as one-phase materials. Plasticity of the soil mass is the main source of non-linearity in the problem and therefore an iterative-incremental algorithm based on the Newton- Raphson procedure is used to solve the nonlinear equilibrium equations. For discretization in time, the Generalized Newmark-β method is used. The soil is represented by a plasticity-based, effective- stress constitutive model suitable for liquefaction. Validation of the present numerical model is done by comparing analytical and centrifuge test results of soil and soil-pile systems with those results obtained with the present numerical model. A soil-pilestructure interaction problem is also presented in order to shown the potentiality of the numerical tool.application/pdfengLatin american journal of solids and structures [recurso eletrônico]. Rio de Janeiro, RJ. Vol. 13, no. 8 (Aug. 2016), p. 1545-1575EngenhariaSoil-structure interactionFully coupled analysisPorous mediaFinite elementsOn the validation of a numerical model for the analysis of soil-structure interaction problemsinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL001079005.pdfTexto completo (inglês)application/pdf3749318http://www.lume.ufrgs.br/bitstream/10183/184020/1/001079005.pdf5e612aee7a81f281b76b0f13b1016d07MD51TEXT001079005.pdf.txt001079005.pdf.txtExtracted Texttext/plain64448http://www.lume.ufrgs.br/bitstream/10183/184020/2/001079005.pdf.txt5b7f8b77a4c6d9f25f4d02540879f2c5MD52THUMBNAIL001079005.pdf.jpg001079005.pdf.jpgGenerated Thumbnailimage/jpeg2039http://www.lume.ufrgs.br/bitstream/10183/184020/3/001079005.pdf.jpg437b7024dfa52ff79ad912bde7fdd0bfMD5310183/1840202018-10-29 07:32:50.484oai:www.lume.ufrgs.br:10183/184020Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-29T10:32:50Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
On the validation of a numerical model for the analysis of soil-structure interaction problems |
title |
On the validation of a numerical model for the analysis of soil-structure interaction problems |
spellingShingle |
On the validation of a numerical model for the analysis of soil-structure interaction problems Tamayo, Jorge Luis Palomino Engenharia Soil-structure interaction Fully coupled analysis Porous media Finite elements |
title_short |
On the validation of a numerical model for the analysis of soil-structure interaction problems |
title_full |
On the validation of a numerical model for the analysis of soil-structure interaction problems |
title_fullStr |
On the validation of a numerical model for the analysis of soil-structure interaction problems |
title_full_unstemmed |
On the validation of a numerical model for the analysis of soil-structure interaction problems |
title_sort |
On the validation of a numerical model for the analysis of soil-structure interaction problems |
author |
Tamayo, Jorge Luis Palomino |
author_facet |
Tamayo, Jorge Luis Palomino Awruch, Armando Miguel |
author_role |
author |
author2 |
Awruch, Armando Miguel |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Tamayo, Jorge Luis Palomino Awruch, Armando Miguel |
dc.subject.por.fl_str_mv |
Engenharia |
topic |
Engenharia Soil-structure interaction Fully coupled analysis Porous media Finite elements |
dc.subject.eng.fl_str_mv |
Soil-structure interaction Fully coupled analysis Porous media Finite elements |
description |
Modeling and simulation of mechanical response of structures, relies on the use of computational models. Therefore, verification and validation procedures are the primary means of assessing accuracy, confidence and credibility in modeling. This paper is concerned with the validation of a three dimensional numerical model based on the finite element method suitable for the dynamic analysis of soil-structure interaction problems. The soil mass, structure, structure’s foundation and the appropriate boundary conditions can be represented altogether in a single model by using a direct approach. The theory of porous media of Biot is used to represent the soil mass as a two-phase material which is considered to be fully saturated with water; meanwhile other parts of the system are treated as one-phase materials. Plasticity of the soil mass is the main source of non-linearity in the problem and therefore an iterative-incremental algorithm based on the Newton- Raphson procedure is used to solve the nonlinear equilibrium equations. For discretization in time, the Generalized Newmark-β method is used. The soil is represented by a plasticity-based, effective- stress constitutive model suitable for liquefaction. Validation of the present numerical model is done by comparing analytical and centrifuge test results of soil and soil-pile systems with those results obtained with the present numerical model. A soil-pilestructure interaction problem is also presented in order to shown the potentiality of the numerical tool. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016 |
dc.date.accessioned.fl_str_mv |
2018-10-27T03:12:20Z |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
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http://hdl.handle.net/10183/184020 |
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1679-7825 |
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001079005 |
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1679-7825 001079005 |
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http://hdl.handle.net/10183/184020 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Latin american journal of solids and structures [recurso eletrônico]. Rio de Janeiro, RJ. Vol. 13, no. 8 (Aug. 2016), p. 1545-1575 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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Repositório Institucional da UFRGS |
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