Thermal expansion of a Spheroidal Graphite Iron: A micromechanical approach
- Autores
- Rodriguez, Francisco; Boccardo, Adrian Dante; Dardati, Patricia Mónica; Celentano, Diego; Godoy, Luis Augusto
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Dimensional variations experienced by materials due to temperature changes are described by the Coefficient of Thermal Expansion (CTE), which is strongly dependent on microstructural features, especially on composites materials. Special attention is given in this work to Spheroidal Graphite Iron (SGI), for which the microstructure may be considered as a composite material formed by graphite particles embedded in a continuous matrix. In this work, a micromechanical approach, accounting for the manufacturing process, was used to compute the CTE of an eutectic SGI in an as-cast condition as a function of microstructural features and temperature. A cubic shaped Representative Volume Element (RVE) with Periodic Boundary Conditions (PBCs) was generated to model the microstructure of SGI. RVEs were formed by 12 non-overlapping spherical nodules embedded in a matrix with varying content of ferrite and perlite, and their size was determined by means of a convergence study. Using finite elements analysis, the macroscopic CTEs were computed for cooling and heating the material in the range from 25 °C to 500 °C. Using this micromechanical model, it was found that volumetric fractions of phases and temperature play a key role on the CTE. This coefficient increased by raising the temperature, increasing the volumetric fraction of ferrite, or decreasing the volumetric fraction of graphite. The manufacturing process had also an influence because plasticity occurred in the metallic matrix during the cooling stage of the casting process. Multivariable polynomial regressions were used on results of the micromechanical model to develop a mathematical expression and evaluate the CTE as a function of the volumetric fractions of phases and temperature. Results of the mathematical expression are compared with experimental data, finding a fairly good correlation between them.
Fil: Rodriguez, Francisco. Universidad Tecnológica Nacional; Argentina
Fil: Boccardo, Adrian Dante. Universidad Nacional de Córdoba; Argentina. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamento de Ingeniería Mecanica; Argentina
Fil: Dardati, Patricia Mónica. Universidad Tecnológica Nacional; Argentina
Fil: Celentano, Diego. Pontificia Universidad Católica de Chile; Chile
Fil: Godoy, Luis Augusto. Universidad Nacional de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Estudios Avanzados en Ingeniería y Tecnología. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Estudios Avanzados en Ingeniería y Tecnología; Argentina - Materia
-
COEFFICIENT OF THERMAL EXPANSION (CTE)
FINITE ELEMENT ANALYSIS (FEA)
MICROMECHANICS
REPRESENTATIVE VOLUME ELEMENT (RVE)
SPHEROIDAL GRAPHITE IRON (SGI) - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/87213
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spelling |
Thermal expansion of a Spheroidal Graphite Iron: A micromechanical approachRodriguez, FranciscoBoccardo, Adrian DanteDardati, Patricia MónicaCelentano, DiegoGodoy, Luis AugustoCOEFFICIENT OF THERMAL EXPANSION (CTE)FINITE ELEMENT ANALYSIS (FEA)MICROMECHANICSREPRESENTATIVE VOLUME ELEMENT (RVE)SPHEROIDAL GRAPHITE IRON (SGI)https://purl.org/becyt/ford/2.3https://purl.org/becyt/ford/2Dimensional variations experienced by materials due to temperature changes are described by the Coefficient of Thermal Expansion (CTE), which is strongly dependent on microstructural features, especially on composites materials. Special attention is given in this work to Spheroidal Graphite Iron (SGI), for which the microstructure may be considered as a composite material formed by graphite particles embedded in a continuous matrix. In this work, a micromechanical approach, accounting for the manufacturing process, was used to compute the CTE of an eutectic SGI in an as-cast condition as a function of microstructural features and temperature. A cubic shaped Representative Volume Element (RVE) with Periodic Boundary Conditions (PBCs) was generated to model the microstructure of SGI. RVEs were formed by 12 non-overlapping spherical nodules embedded in a matrix with varying content of ferrite and perlite, and their size was determined by means of a convergence study. Using finite elements analysis, the macroscopic CTEs were computed for cooling and heating the material in the range from 25 °C to 500 °C. Using this micromechanical model, it was found that volumetric fractions of phases and temperature play a key role on the CTE. This coefficient increased by raising the temperature, increasing the volumetric fraction of ferrite, or decreasing the volumetric fraction of graphite. The manufacturing process had also an influence because plasticity occurred in the metallic matrix during the cooling stage of the casting process. Multivariable polynomial regressions were used on results of the micromechanical model to develop a mathematical expression and evaluate the CTE as a function of the volumetric fractions of phases and temperature. Results of the mathematical expression are compared with experimental data, finding a fairly good correlation between them.Fil: Rodriguez, Francisco. Universidad Tecnológica Nacional; ArgentinaFil: Boccardo, Adrian Dante. Universidad Nacional de Córdoba; Argentina. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamento de Ingeniería Mecanica; ArgentinaFil: Dardati, Patricia Mónica. Universidad Tecnológica Nacional; ArgentinaFil: Celentano, Diego. Pontificia Universidad Católica de Chile; ChileFil: Godoy, Luis Augusto. Universidad Nacional de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Estudios Avanzados en Ingeniería y Tecnología. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Estudios Avanzados en Ingeniería y Tecnología; ArgentinaElsevier Science2018-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/87213Rodriguez, Francisco; Boccardo, Adrian Dante; Dardati, Patricia Mónica; Celentano, Diego; Godoy, Luis Augusto; Thermal expansion of a Spheroidal Graphite Iron: A micromechanical approach; Elsevier Science; Finite Elements In Analysis And Design; 141; 3-2018; 26-360168-874XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://linkinghub.elsevier.com/retrieve/pii/S0168874X17306947info:eu-repo/semantics/altIdentifier/doi/10.1016/j.finel.2017.11.012info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:35:38Zoai:ri.conicet.gov.ar:11336/87213instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:35:38.286CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Thermal expansion of a Spheroidal Graphite Iron: A micromechanical approach |
title |
Thermal expansion of a Spheroidal Graphite Iron: A micromechanical approach |
spellingShingle |
Thermal expansion of a Spheroidal Graphite Iron: A micromechanical approach Rodriguez, Francisco COEFFICIENT OF THERMAL EXPANSION (CTE) FINITE ELEMENT ANALYSIS (FEA) MICROMECHANICS REPRESENTATIVE VOLUME ELEMENT (RVE) SPHEROIDAL GRAPHITE IRON (SGI) |
title_short |
Thermal expansion of a Spheroidal Graphite Iron: A micromechanical approach |
title_full |
Thermal expansion of a Spheroidal Graphite Iron: A micromechanical approach |
title_fullStr |
Thermal expansion of a Spheroidal Graphite Iron: A micromechanical approach |
title_full_unstemmed |
Thermal expansion of a Spheroidal Graphite Iron: A micromechanical approach |
title_sort |
Thermal expansion of a Spheroidal Graphite Iron: A micromechanical approach |
dc.creator.none.fl_str_mv |
Rodriguez, Francisco Boccardo, Adrian Dante Dardati, Patricia Mónica Celentano, Diego Godoy, Luis Augusto |
author |
Rodriguez, Francisco |
author_facet |
Rodriguez, Francisco Boccardo, Adrian Dante Dardati, Patricia Mónica Celentano, Diego Godoy, Luis Augusto |
author_role |
author |
author2 |
Boccardo, Adrian Dante Dardati, Patricia Mónica Celentano, Diego Godoy, Luis Augusto |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
COEFFICIENT OF THERMAL EXPANSION (CTE) FINITE ELEMENT ANALYSIS (FEA) MICROMECHANICS REPRESENTATIVE VOLUME ELEMENT (RVE) SPHEROIDAL GRAPHITE IRON (SGI) |
topic |
COEFFICIENT OF THERMAL EXPANSION (CTE) FINITE ELEMENT ANALYSIS (FEA) MICROMECHANICS REPRESENTATIVE VOLUME ELEMENT (RVE) SPHEROIDAL GRAPHITE IRON (SGI) |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.3 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
Dimensional variations experienced by materials due to temperature changes are described by the Coefficient of Thermal Expansion (CTE), which is strongly dependent on microstructural features, especially on composites materials. Special attention is given in this work to Spheroidal Graphite Iron (SGI), for which the microstructure may be considered as a composite material formed by graphite particles embedded in a continuous matrix. In this work, a micromechanical approach, accounting for the manufacturing process, was used to compute the CTE of an eutectic SGI in an as-cast condition as a function of microstructural features and temperature. A cubic shaped Representative Volume Element (RVE) with Periodic Boundary Conditions (PBCs) was generated to model the microstructure of SGI. RVEs were formed by 12 non-overlapping spherical nodules embedded in a matrix with varying content of ferrite and perlite, and their size was determined by means of a convergence study. Using finite elements analysis, the macroscopic CTEs were computed for cooling and heating the material in the range from 25 °C to 500 °C. Using this micromechanical model, it was found that volumetric fractions of phases and temperature play a key role on the CTE. This coefficient increased by raising the temperature, increasing the volumetric fraction of ferrite, or decreasing the volumetric fraction of graphite. The manufacturing process had also an influence because plasticity occurred in the metallic matrix during the cooling stage of the casting process. Multivariable polynomial regressions were used on results of the micromechanical model to develop a mathematical expression and evaluate the CTE as a function of the volumetric fractions of phases and temperature. Results of the mathematical expression are compared with experimental data, finding a fairly good correlation between them. Fil: Rodriguez, Francisco. Universidad Tecnológica Nacional; Argentina Fil: Boccardo, Adrian Dante. Universidad Nacional de Córdoba; Argentina. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamento de Ingeniería Mecanica; Argentina Fil: Dardati, Patricia Mónica. Universidad Tecnológica Nacional; Argentina Fil: Celentano, Diego. Pontificia Universidad Católica de Chile; Chile Fil: Godoy, Luis Augusto. Universidad Nacional de Córdoba; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Estudios Avanzados en Ingeniería y Tecnología. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto de Estudios Avanzados en Ingeniería y Tecnología; Argentina |
description |
Dimensional variations experienced by materials due to temperature changes are described by the Coefficient of Thermal Expansion (CTE), which is strongly dependent on microstructural features, especially on composites materials. Special attention is given in this work to Spheroidal Graphite Iron (SGI), for which the microstructure may be considered as a composite material formed by graphite particles embedded in a continuous matrix. In this work, a micromechanical approach, accounting for the manufacturing process, was used to compute the CTE of an eutectic SGI in an as-cast condition as a function of microstructural features and temperature. A cubic shaped Representative Volume Element (RVE) with Periodic Boundary Conditions (PBCs) was generated to model the microstructure of SGI. RVEs were formed by 12 non-overlapping spherical nodules embedded in a matrix with varying content of ferrite and perlite, and their size was determined by means of a convergence study. Using finite elements analysis, the macroscopic CTEs were computed for cooling and heating the material in the range from 25 °C to 500 °C. Using this micromechanical model, it was found that volumetric fractions of phases and temperature play a key role on the CTE. This coefficient increased by raising the temperature, increasing the volumetric fraction of ferrite, or decreasing the volumetric fraction of graphite. The manufacturing process had also an influence because plasticity occurred in the metallic matrix during the cooling stage of the casting process. Multivariable polynomial regressions were used on results of the micromechanical model to develop a mathematical expression and evaluate the CTE as a function of the volumetric fractions of phases and temperature. Results of the mathematical expression are compared with experimental data, finding a fairly good correlation between them. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-03 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/87213 Rodriguez, Francisco; Boccardo, Adrian Dante; Dardati, Patricia Mónica; Celentano, Diego; Godoy, Luis Augusto; Thermal expansion of a Spheroidal Graphite Iron: A micromechanical approach; Elsevier Science; Finite Elements In Analysis And Design; 141; 3-2018; 26-36 0168-874X CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/87213 |
identifier_str_mv |
Rodriguez, Francisco; Boccardo, Adrian Dante; Dardati, Patricia Mónica; Celentano, Diego; Godoy, Luis Augusto; Thermal expansion of a Spheroidal Graphite Iron: A micromechanical approach; Elsevier Science; Finite Elements In Analysis And Design; 141; 3-2018; 26-36 0168-874X CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://linkinghub.elsevier.com/retrieve/pii/S0168874X17306947 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.finel.2017.11.012 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Science |
publisher.none.fl_str_mv |
Elsevier Science |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613111782309888 |
score |
13.070432 |