Nonlinear equilibrium and stability analysis of axially loaded piles under bilateral contact constraints.
Autor(a) principal: | |
---|---|
Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFOP |
Texto Completo: | http://www.repositorio.ufop.br/handle/123456789/8621 http://dx.doi.org/10.1590/1679-78251173 |
Resumo: | This paper presents a nonlinear stability analysis of piles under bilateral contact constraints imposed by a geological medium (soil or rock). To solve this contact problem, the paper proposes a general numerical methodology, based on the finite element meth-od (FEM). In this context, a geometrically nonlinear beam-column element is used to model the pile while the geological medium can be idealized as discrete (spring) or continuum (Winkler and Pas-ternak) foundation elements. Foundation elements are supposed to react under tension and compression, so during the deformation process the structural elements are subjected to bilateral contact constraints. The errors along the equilibrium paths are minimized and the convoluted nonlinear equilibrium paths are made tracea-ble through the use of an updated Lagrangian formulation and a Newton-Raphson scheme working with the generalized displace-ment technique. The study offers stability analyses of three prob-lems involving piles under bilateral contact constraints. The anal-yses show that in the evaluation of critical loads a great influence is wielded by the instability modes. Also, the structural system stiffness can be highly influenced by the representative model of the soil. |
id |
UFOP_1f80f63782f02c7a0b402a2150ddc08c |
---|---|
oai_identifier_str |
oai:localhost:123456789/8621 |
network_acronym_str |
UFOP |
network_name_str |
Repositório Institucional da UFOP |
repository_id_str |
3233 |
spelling |
Silveira, Ricardo Azoubel da MotaMaciel, Felipe VieiraSilva, Andréa Regina Dias daMachado, Fernando Carlos SchefferNogueira, Christianne de Lyra2017-08-31T14:38:58Z2017-08-31T14:38:58Z2015SILVEIRA, R. A. da M. et al. Nonlinear equilibrium and stability analysis of axially loaded piles under bilateral contact constraints. Latin American Journal of Solids and Structures, v. 12, p. 250-270, 2015. Disponível em: <http://www.lajss.org/index.php/LAJSS/article/view/1173>. Acesso em: 20 jul. 2017.1679-7825http://www.repositorio.ufop.br/handle/123456789/8621http://dx.doi.org/10.1590/1679-78251173This paper presents a nonlinear stability analysis of piles under bilateral contact constraints imposed by a geological medium (soil or rock). To solve this contact problem, the paper proposes a general numerical methodology, based on the finite element meth-od (FEM). In this context, a geometrically nonlinear beam-column element is used to model the pile while the geological medium can be idealized as discrete (spring) or continuum (Winkler and Pas-ternak) foundation elements. Foundation elements are supposed to react under tension and compression, so during the deformation process the structural elements are subjected to bilateral contact constraints. The errors along the equilibrium paths are minimized and the convoluted nonlinear equilibrium paths are made tracea-ble through the use of an updated Lagrangian formulation and a Newton-Raphson scheme working with the generalized displace-ment technique. The study offers stability analyses of three prob-lems involving piles under bilateral contact constraints. The anal-yses show that in the evaluation of critical loads a great influence is wielded by the instability modes. Also, the structural system stiffness can be highly influenced by the representative model of the soil.Os trabalhos publicados no periódico Latin American Journal of Solids and Structures estão sob Licença Creative Commons que permite copiar, distribuir e transmitir o trabalho desde que sejam citados o autor e o licenciante. Fonte: Latin American Journal of Solids and Structures <http://www.lajss.org/index.php/LAJSS/about/submissions#copyrightNotice>. Acesso em: 23 jan. 2020.info:eu-repo/semantics/openAccessPilesElastic foundationNonlinear analysisStabilityNonlinear equilibrium and stability analysis of axially loaded piles under bilateral contact constraints.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOPLICENSElicense.txtlicense.txttext/plain; charset=utf-8924http://www.repositorio.ufop.br/bitstream/123456789/8621/2/license.txt62604f8d955274beb56c80ce1ee5dcaeMD52ORIGINALARTIGO_NonlinearEquilibriumStability.pdfARTIGO_NonlinearEquilibriumStability.pdfapplication/pdf1206566http://www.repositorio.ufop.br/bitstream/123456789/8621/1/ARTIGO_NonlinearEquilibriumStability.pdfdcd211cc19063e390f3afc1bd77f4fd5MD51123456789/86212020-01-23 07:00:01.608oai:localhost: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ório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332020-01-23T12:00:01Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false |
dc.title.pt_BR.fl_str_mv |
Nonlinear equilibrium and stability analysis of axially loaded piles under bilateral contact constraints. |
title |
Nonlinear equilibrium and stability analysis of axially loaded piles under bilateral contact constraints. |
spellingShingle |
Nonlinear equilibrium and stability analysis of axially loaded piles under bilateral contact constraints. Silveira, Ricardo Azoubel da Mota Piles Elastic foundation Nonlinear analysis Stability |
title_short |
Nonlinear equilibrium and stability analysis of axially loaded piles under bilateral contact constraints. |
title_full |
Nonlinear equilibrium and stability analysis of axially loaded piles under bilateral contact constraints. |
title_fullStr |
Nonlinear equilibrium and stability analysis of axially loaded piles under bilateral contact constraints. |
title_full_unstemmed |
Nonlinear equilibrium and stability analysis of axially loaded piles under bilateral contact constraints. |
title_sort |
Nonlinear equilibrium and stability analysis of axially loaded piles under bilateral contact constraints. |
author |
Silveira, Ricardo Azoubel da Mota |
author_facet |
Silveira, Ricardo Azoubel da Mota Maciel, Felipe Vieira Silva, Andréa Regina Dias da Machado, Fernando Carlos Scheffer Nogueira, Christianne de Lyra |
author_role |
author |
author2 |
Maciel, Felipe Vieira Silva, Andréa Regina Dias da Machado, Fernando Carlos Scheffer Nogueira, Christianne de Lyra |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Silveira, Ricardo Azoubel da Mota Maciel, Felipe Vieira Silva, Andréa Regina Dias da Machado, Fernando Carlos Scheffer Nogueira, Christianne de Lyra |
dc.subject.por.fl_str_mv |
Piles Elastic foundation Nonlinear analysis Stability |
topic |
Piles Elastic foundation Nonlinear analysis Stability |
description |
This paper presents a nonlinear stability analysis of piles under bilateral contact constraints imposed by a geological medium (soil or rock). To solve this contact problem, the paper proposes a general numerical methodology, based on the finite element meth-od (FEM). In this context, a geometrically nonlinear beam-column element is used to model the pile while the geological medium can be idealized as discrete (spring) or continuum (Winkler and Pas-ternak) foundation elements. Foundation elements are supposed to react under tension and compression, so during the deformation process the structural elements are subjected to bilateral contact constraints. The errors along the equilibrium paths are minimized and the convoluted nonlinear equilibrium paths are made tracea-ble through the use of an updated Lagrangian formulation and a Newton-Raphson scheme working with the generalized displace-ment technique. The study offers stability analyses of three prob-lems involving piles under bilateral contact constraints. The anal-yses show that in the evaluation of critical loads a great influence is wielded by the instability modes. Also, the structural system stiffness can be highly influenced by the representative model of the soil. |
publishDate |
2015 |
dc.date.issued.fl_str_mv |
2015 |
dc.date.accessioned.fl_str_mv |
2017-08-31T14:38:58Z |
dc.date.available.fl_str_mv |
2017-08-31T14:38:58Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
SILVEIRA, R. A. da M. et al. Nonlinear equilibrium and stability analysis of axially loaded piles under bilateral contact constraints. Latin American Journal of Solids and Structures, v. 12, p. 250-270, 2015. Disponível em: <http://www.lajss.org/index.php/LAJSS/article/view/1173>. Acesso em: 20 jul. 2017. |
dc.identifier.uri.fl_str_mv |
http://www.repositorio.ufop.br/handle/123456789/8621 |
dc.identifier.issn.none.fl_str_mv |
1679-7825 |
dc.identifier.doi.none.fl_str_mv |
http://dx.doi.org/10.1590/1679-78251173 |
identifier_str_mv |
SILVEIRA, R. A. da M. et al. Nonlinear equilibrium and stability analysis of axially loaded piles under bilateral contact constraints. Latin American Journal of Solids and Structures, v. 12, p. 250-270, 2015. Disponível em: <http://www.lajss.org/index.php/LAJSS/article/view/1173>. Acesso em: 20 jul. 2017. 1679-7825 |
url |
http://www.repositorio.ufop.br/handle/123456789/8621 http://dx.doi.org/10.1590/1679-78251173 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFOP instname:Universidade Federal de Ouro Preto (UFOP) instacron:UFOP |
instname_str |
Universidade Federal de Ouro Preto (UFOP) |
instacron_str |
UFOP |
institution |
UFOP |
reponame_str |
Repositório Institucional da UFOP |
collection |
Repositório Institucional da UFOP |
bitstream.url.fl_str_mv |
http://www.repositorio.ufop.br/bitstream/123456789/8621/2/license.txt http://www.repositorio.ufop.br/bitstream/123456789/8621/1/ARTIGO_NonlinearEquilibriumStability.pdf |
bitstream.checksum.fl_str_mv |
62604f8d955274beb56c80ce1ee5dcae dcd211cc19063e390f3afc1bd77f4fd5 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP) |
repository.mail.fl_str_mv |
repositorio@ufop.edu.br |
_version_ |
1801685771881545728 |