3D DEM model simulation of asphalt mastics with sunflower oil

Detalhes bibliográficos
Autor(a) principal: Câmara, Gustavo
Data de Publicação: 2023
Outros Autores: Micaelo, Rui, Monteiro Azevedo, Nuno
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/153096
Resumo: Publisher Copyright: © 2023, The Author(s).
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spelling 3D DEM model simulation of asphalt mastics with sunflower oilAsphalt masticDiscrete element modelGeneralized Kelvin modelSelf-healingSunflower oilViscoelasticityComputational MechanicsCivil and Structural EngineeringNumerical AnalysisModelling and SimulationFluid Flow and Transfer ProcessesComputational MathematicsPublisher Copyright: © 2023, The Author(s).A three-dimensional particle model, based on the asphalt mastic micro-structure representation following a discrete element model framework, was developed to investigate the influence of sunflower oil (rejuvenator) on the rheological properties of asphalt mastic. Dynamic shear rheometer tests in laboratory, for a frequency range of 0.1–20 Hz and temperatures in a range between 20 and 80 ∘C, were carried out in order to assess the viscoelastic behaviour of asphalt mastics containing different oil-to-bitumen content by mass proportions (2.5–20%). Master curves were constructed for two reference temperatures (30 ∘C and 50 ∘C). Experimental results showed that the increase in sunflower oil content resulted in a progressive decrease in viscosity. However, the rheological behaviour of the mastic containing the highest oil amount could not be properly represented in master curves, indicating that the specimen had a different rheological behaviour when compared with the lower oil contents responses. Numerical simulations of rheometer tests were carried out with an asphalt mastic particle assembly that emulated the experimental procedure. The viscoelastic contacts within the asphalt mastic assembly were simulated with a generalized Kelvin contact model. A calibration procedure was derived based on the fitting of laboratory data. The simulations were shown to have a good agreement with laboratory values. The average errors for the dynamic shear modulus and phase angle were 3.4% and 4.0%, respectively, considering both temperatures of analysis. Finally, a considerable improvement was accomplished in comparison with the numerical response obtained with the often-used Burgers model.DEC - Departamento de Engenharia CivilCERIS - Polo NOVARUNCâmara, GustavoMicaelo, RuiMonteiro Azevedo, Nuno2023-05-23T22:19:21Z2023-112023-11-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article18application/pdfhttp://hdl.handle.net/10362/153096eng2196-4378PURE: 61289682https://doi.org/10.1007/s40571-023-00574-1info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T05:35:40Zoai:run.unl.pt:10362/153096Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:55:10.499893Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv 3D DEM model simulation of asphalt mastics with sunflower oil
title 3D DEM model simulation of asphalt mastics with sunflower oil
spellingShingle 3D DEM model simulation of asphalt mastics with sunflower oil
Câmara, Gustavo
Asphalt mastic
Discrete element model
Generalized Kelvin model
Self-healing
Sunflower oil
Viscoelasticity
Computational Mechanics
Civil and Structural Engineering
Numerical Analysis
Modelling and Simulation
Fluid Flow and Transfer Processes
Computational Mathematics
title_short 3D DEM model simulation of asphalt mastics with sunflower oil
title_full 3D DEM model simulation of asphalt mastics with sunflower oil
title_fullStr 3D DEM model simulation of asphalt mastics with sunflower oil
title_full_unstemmed 3D DEM model simulation of asphalt mastics with sunflower oil
title_sort 3D DEM model simulation of asphalt mastics with sunflower oil
author Câmara, Gustavo
author_facet Câmara, Gustavo
Micaelo, Rui
Monteiro Azevedo, Nuno
author_role author
author2 Micaelo, Rui
Monteiro Azevedo, Nuno
author2_role author
author
dc.contributor.none.fl_str_mv DEC - Departamento de Engenharia Civil
CERIS - Polo NOVA
RUN
dc.contributor.author.fl_str_mv Câmara, Gustavo
Micaelo, Rui
Monteiro Azevedo, Nuno
dc.subject.por.fl_str_mv Asphalt mastic
Discrete element model
Generalized Kelvin model
Self-healing
Sunflower oil
Viscoelasticity
Computational Mechanics
Civil and Structural Engineering
Numerical Analysis
Modelling and Simulation
Fluid Flow and Transfer Processes
Computational Mathematics
topic Asphalt mastic
Discrete element model
Generalized Kelvin model
Self-healing
Sunflower oil
Viscoelasticity
Computational Mechanics
Civil and Structural Engineering
Numerical Analysis
Modelling and Simulation
Fluid Flow and Transfer Processes
Computational Mathematics
description Publisher Copyright: © 2023, The Author(s).
publishDate 2023
dc.date.none.fl_str_mv 2023-05-23T22:19:21Z
2023-11
2023-11-01T00:00:00Z
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://hdl.handle.net/10362/153096
url http://hdl.handle.net/10362/153096
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2196-4378
PURE: 61289682
https://doi.org/10.1007/s40571-023-00574-1
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 18
application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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