Transient motions of elasto-viscoplastic thixotropic materials subjected to an imposed stress field and to stress-based free-surface boundary conditions
Autor(a) principal: | |
---|---|
Data de Publicação: | 2016 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.ijengsci.2016.08.004 http://hdl.handle.net/11449/162156 |
Resumo: | In the present work, we present an approach to handle transient flows of elasto-viscoplastic thixotropic (EVPT) materials under the action of the gravity force field and subjected to free-surface boundary conditions that are stress-based. This kind of conditions are common in problems where the motion is unknown a priori, i.e. the motion is treated as a consequence while the forces are the cause. The model for the EVPT material employed is within the scope of a recently developed thermodynamic backbone for elasto-viscoplastic thixotropic materials. The finite difference Marker and Cell method is used to investigate effects of elasticity, thixotropy, and plasticity varying the Weissenberg number, the dimensionless thixotropic equilibrium time, and the yield number, respectively. The Cartesian Poiseuille flow is used to test the main features of the numerical scheme. The evolution in time of an initially square and fully-structured block is captured. The structure level and shape evolutions of the block reveal the capability of the present numerical approach to handle the complexity of the material and the free-surface motion. (C) 2016 Elsevier Ltd. All rights reserved. |
id |
UNSP_fd20b53e33ae949bf869551dc0f325c7 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/162156 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Transient motions of elasto-viscoplastic thixotropic materials subjected to an imposed stress field and to stress-based free-surface boundary conditionsElasto-viscoplastic thixotropic materialsNumerical solutionFinite difference marker and cell methodTransient computationsFree-surface boundary conditionsIn the present work, we present an approach to handle transient flows of elasto-viscoplastic thixotropic (EVPT) materials under the action of the gravity force field and subjected to free-surface boundary conditions that are stress-based. This kind of conditions are common in problems where the motion is unknown a priori, i.e. the motion is treated as a consequence while the forces are the cause. The model for the EVPT material employed is within the scope of a recently developed thermodynamic backbone for elasto-viscoplastic thixotropic materials. The finite difference Marker and Cell method is used to investigate effects of elasticity, thixotropy, and plasticity varying the Weissenberg number, the dimensionless thixotropic equilibrium time, and the yield number, respectively. The Cartesian Poiseuille flow is used to test the main features of the numerical scheme. The evolution in time of an initially square and fully-structured block is captured. The structure level and shape evolutions of the block reveal the capability of the present numerical approach to handle the complexity of the material and the free-surface motion. (C) 2016 Elsevier Ltd. All rights reserved.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Estadual Paulista, Fac Ciencias & Tecnol, Dept Matemat & Comp, BR-19060900 Presidente Prudente, SP, BrazilUniv Fed Rio de Janeiro, Ctr Tecnol, COPPE, Dept Mech Engn, BR-21945970 Rio De Janeiro, RJ, BrazilUniv Estadual Paulista, Fac Ciencias & Tecnol, Dept Matemat & Comp, BR-19060900 Presidente Prudente, SP, BrazilFAPESP: 2013/07375-0CNPq: 473589/2013-3CNPq: 309514/2013-4CNPq: 485427/2012-5CNPq: 309004/2014-4Elsevier B.V.Universidade Estadual Paulista (Unesp)Universidade Federal do Rio de Janeiro (UFRJ)Oishi, Cassio M. [UNESP]Thompson, Roney L.Martins, Fernando P. [UNESP]2018-11-26T17:10:37Z2018-11-26T17:10:37Z2016-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article165-201application/pdfhttp://dx.doi.org/10.1016/j.ijengsci.2016.08.004International Journal Of Engineering Science. Oxford: Pergamon-elsevier Science Ltd, v. 109, p. 165-201, 2016.0020-7225http://hdl.handle.net/11449/16215610.1016/j.ijengsci.2016.08.004WOS:000387627700009WOS000387627700009.pdfWeb of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengInternational Journal Of Engineering Science2,820info:eu-repo/semantics/openAccess2024-06-19T14:31:52Zoai:repositorio.unesp.br:11449/162156Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-06-19T14:31:52Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Transient motions of elasto-viscoplastic thixotropic materials subjected to an imposed stress field and to stress-based free-surface boundary conditions |
title |
Transient motions of elasto-viscoplastic thixotropic materials subjected to an imposed stress field and to stress-based free-surface boundary conditions |
spellingShingle |
Transient motions of elasto-viscoplastic thixotropic materials subjected to an imposed stress field and to stress-based free-surface boundary conditions Oishi, Cassio M. [UNESP] Elasto-viscoplastic thixotropic materials Numerical solution Finite difference marker and cell method Transient computations Free-surface boundary conditions |
title_short |
Transient motions of elasto-viscoplastic thixotropic materials subjected to an imposed stress field and to stress-based free-surface boundary conditions |
title_full |
Transient motions of elasto-viscoplastic thixotropic materials subjected to an imposed stress field and to stress-based free-surface boundary conditions |
title_fullStr |
Transient motions of elasto-viscoplastic thixotropic materials subjected to an imposed stress field and to stress-based free-surface boundary conditions |
title_full_unstemmed |
Transient motions of elasto-viscoplastic thixotropic materials subjected to an imposed stress field and to stress-based free-surface boundary conditions |
title_sort |
Transient motions of elasto-viscoplastic thixotropic materials subjected to an imposed stress field and to stress-based free-surface boundary conditions |
author |
Oishi, Cassio M. [UNESP] |
author_facet |
Oishi, Cassio M. [UNESP] Thompson, Roney L. Martins, Fernando P. [UNESP] |
author_role |
author |
author2 |
Thompson, Roney L. Martins, Fernando P. [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal do Rio de Janeiro (UFRJ) |
dc.contributor.author.fl_str_mv |
Oishi, Cassio M. [UNESP] Thompson, Roney L. Martins, Fernando P. [UNESP] |
dc.subject.por.fl_str_mv |
Elasto-viscoplastic thixotropic materials Numerical solution Finite difference marker and cell method Transient computations Free-surface boundary conditions |
topic |
Elasto-viscoplastic thixotropic materials Numerical solution Finite difference marker and cell method Transient computations Free-surface boundary conditions |
description |
In the present work, we present an approach to handle transient flows of elasto-viscoplastic thixotropic (EVPT) materials under the action of the gravity force field and subjected to free-surface boundary conditions that are stress-based. This kind of conditions are common in problems where the motion is unknown a priori, i.e. the motion is treated as a consequence while the forces are the cause. The model for the EVPT material employed is within the scope of a recently developed thermodynamic backbone for elasto-viscoplastic thixotropic materials. The finite difference Marker and Cell method is used to investigate effects of elasticity, thixotropy, and plasticity varying the Weissenberg number, the dimensionless thixotropic equilibrium time, and the yield number, respectively. The Cartesian Poiseuille flow is used to test the main features of the numerical scheme. The evolution in time of an initially square and fully-structured block is captured. The structure level and shape evolutions of the block reveal the capability of the present numerical approach to handle the complexity of the material and the free-surface motion. (C) 2016 Elsevier Ltd. All rights reserved. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-12-01 2018-11-26T17:10:37Z 2018-11-26T17:10:37Z |
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.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.ijengsci.2016.08.004 International Journal Of Engineering Science. Oxford: Pergamon-elsevier Science Ltd, v. 109, p. 165-201, 2016. 0020-7225 http://hdl.handle.net/11449/162156 10.1016/j.ijengsci.2016.08.004 WOS:000387627700009 WOS000387627700009.pdf |
url |
http://dx.doi.org/10.1016/j.ijengsci.2016.08.004 http://hdl.handle.net/11449/162156 |
identifier_str_mv |
International Journal Of Engineering Science. Oxford: Pergamon-elsevier Science Ltd, v. 109, p. 165-201, 2016. 0020-7225 10.1016/j.ijengsci.2016.08.004 WOS:000387627700009 WOS000387627700009.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
International Journal Of Engineering Science 2,820 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
165-201 application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier B.V. |
publisher.none.fl_str_mv |
Elsevier B.V. |
dc.source.none.fl_str_mv |
Web of Science reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1803045259609899008 |