Formulation of reference solutions for compaction process in sedimentary basins
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/216696 |
Resumo: | This paper is devoted to the development of semianalytical solutions for the deformation induced by gravitational compaction in sedimentary basins. Formulated within the framework of coupled plasticity–viscoplasticity at large strains, the modeling dedicates special emphasis to the effects of material densification associated with large irreversible porosity changes on the stiffness and hardening of the sediment material. At material level, the purely mechanical compaction taking place in the upper layers of the basin is handled in the context of finite elastoplasticity, whereas the viscoplastic component of behavior is intended to address creep-like deformation resulting from chemomechanical that prevails at deeper layers. Semianalytical solutions describing the evolution of mechanical state of the sedimentary basin along both the accretion and postaccretion periods are presented in the simplified oedometric setting. These solutions can be viewed as reference solutions for verification and benchmarks of basin simulators. The proposed approach may reveal suitable for parametric analyses because it requires only standard mathematics-based software for PDE system resolution. The numerical illustrations provide a quantitative comparison between the derived solutions and finite element predictions from an appropriate basin simulator, thus showing the ability of the approach to accurately capture essential features of basin deformation. |
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Lemos, Paulo Sérgio BaumbachBrüch, André ReinertMaghous, Samir2020-12-18T04:13:42Z20201096-9853http://hdl.handle.net/10183/216696001119620This paper is devoted to the development of semianalytical solutions for the deformation induced by gravitational compaction in sedimentary basins. Formulated within the framework of coupled plasticity–viscoplasticity at large strains, the modeling dedicates special emphasis to the effects of material densification associated with large irreversible porosity changes on the stiffness and hardening of the sediment material. At material level, the purely mechanical compaction taking place in the upper layers of the basin is handled in the context of finite elastoplasticity, whereas the viscoplastic component of behavior is intended to address creep-like deformation resulting from chemomechanical that prevails at deeper layers. Semianalytical solutions describing the evolution of mechanical state of the sedimentary basin along both the accretion and postaccretion periods are presented in the simplified oedometric setting. These solutions can be viewed as reference solutions for verification and benchmarks of basin simulators. The proposed approach may reveal suitable for parametric analyses because it requires only standard mathematics-based software for PDE system resolution. The numerical illustrations provide a quantitative comparison between the derived solutions and finite element predictions from an appropriate basin simulator, thus showing the ability of the approach to accurately capture essential features of basin deformation.application/pdfengInternational journal for numerical and analytical methods in geomechanics [recurso eletrônico]. Hoboken, NJ : Wiley. Vol. 44, no. 16 (Nov. 2020), p. 2135-2166ViscoplasticidadeCompactação do soloBacias sedimentaresCoupled plasticity–viscoplasticityGravitational compactionHardeningLarge strainsSedimentary basinFormulation of reference solutions for compaction process in sedimentary basinsEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001119620.pdf.txt001119620.pdf.txtExtracted Texttext/plain89593http://www.lume.ufrgs.br/bitstream/10183/216696/2/001119620.pdf.txt6aff1c4bca04b6349b47e8c2427fae6cMD52ORIGINAL001119620.pdfTexto completo (inglês)application/pdf2847559http://www.lume.ufrgs.br/bitstream/10183/216696/1/001119620.pdf6109606c50468c8607b37288b59b2975MD5110183/2166962021-11-20 05:59:40.450605oai:www.lume.ufrgs.br:10183/216696Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-11-20T07:59:40Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Formulation of reference solutions for compaction process in sedimentary basins |
title |
Formulation of reference solutions for compaction process in sedimentary basins |
spellingShingle |
Formulation of reference solutions for compaction process in sedimentary basins Lemos, Paulo Sérgio Baumbach Viscoplasticidade Compactação do solo Bacias sedimentares Coupled plasticity–viscoplasticity Gravitational compaction Hardening Large strains Sedimentary basin |
title_short |
Formulation of reference solutions for compaction process in sedimentary basins |
title_full |
Formulation of reference solutions for compaction process in sedimentary basins |
title_fullStr |
Formulation of reference solutions for compaction process in sedimentary basins |
title_full_unstemmed |
Formulation of reference solutions for compaction process in sedimentary basins |
title_sort |
Formulation of reference solutions for compaction process in sedimentary basins |
author |
Lemos, Paulo Sérgio Baumbach |
author_facet |
Lemos, Paulo Sérgio Baumbach Brüch, André Reinert Maghous, Samir |
author_role |
author |
author2 |
Brüch, André Reinert Maghous, Samir |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Lemos, Paulo Sérgio Baumbach Brüch, André Reinert Maghous, Samir |
dc.subject.por.fl_str_mv |
Viscoplasticidade Compactação do solo Bacias sedimentares |
topic |
Viscoplasticidade Compactação do solo Bacias sedimentares Coupled plasticity–viscoplasticity Gravitational compaction Hardening Large strains Sedimentary basin |
dc.subject.eng.fl_str_mv |
Coupled plasticity–viscoplasticity Gravitational compaction Hardening Large strains Sedimentary basin |
description |
This paper is devoted to the development of semianalytical solutions for the deformation induced by gravitational compaction in sedimentary basins. Formulated within the framework of coupled plasticity–viscoplasticity at large strains, the modeling dedicates special emphasis to the effects of material densification associated with large irreversible porosity changes on the stiffness and hardening of the sediment material. At material level, the purely mechanical compaction taking place in the upper layers of the basin is handled in the context of finite elastoplasticity, whereas the viscoplastic component of behavior is intended to address creep-like deformation resulting from chemomechanical that prevails at deeper layers. Semianalytical solutions describing the evolution of mechanical state of the sedimentary basin along both the accretion and postaccretion periods are presented in the simplified oedometric setting. These solutions can be viewed as reference solutions for verification and benchmarks of basin simulators. The proposed approach may reveal suitable for parametric analyses because it requires only standard mathematics-based software for PDE system resolution. The numerical illustrations provide a quantitative comparison between the derived solutions and finite element predictions from an appropriate basin simulator, thus showing the ability of the approach to accurately capture essential features of basin deformation. |
publishDate |
2020 |
dc.date.accessioned.fl_str_mv |
2020-12-18T04:13:42Z |
dc.date.issued.fl_str_mv |
2020 |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/216696 |
dc.identifier.issn.pt_BR.fl_str_mv |
1096-9853 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001119620 |
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1096-9853 001119620 |
url |
http://hdl.handle.net/10183/216696 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
International journal for numerical and analytical methods in geomechanics [recurso eletrônico]. Hoboken, NJ : Wiley. Vol. 44, no. 16 (Nov. 2020), p. 2135-2166 |
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info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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