Dilatational viscoplasticity of polycrystalline solids with intergranular cavities
- Autores
- Lebensohn, Ricardo Anibal; Idiart, Martín Ignacio; Castañeda, P. Ponte; Vincent, P.-G.
- Año de publicación
- 2011
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We propose constitutive models for polycrystalline aggregates with intergranular cavities and test them against full-field numerical simulations. Such conditions are prevalent in many engineering applications and failure of metallic components (e.g. HIPing and other forming processes, spallation under dynamic loading conditions, etc.), where the dilatational effects associated with the presence of cavities must be accounted for, and standard polycrystalline models for incompressible plasticity are not appropriate. On the other hand, it is not clear that the use of porous plasticity models with isotropic matrix behavior is relevant, particularly, when large deformations can lead to significant texture evolution and therefore to strong matrix anisotropy. Of course, finite strains can also lead to significant changes in the porosity and pore shape, resulting in additional anisotropy development. In this work, we make use of ‘variational linear-comparison’ homogenization methods to develop constitutive models simultaneously accounting for texture of the matrix, porosity and average pore shape and orientation. The predictions of the models are compared with full-field numerical simulations based on fast Fourier transforms to study the influence of different microstructural features (e.g. overall porosity, texture of the matrix phase, single-crystal anisotropy, etc.) and type of loading (triaxiality) on the dilatational viscoplastic behavior of voided polycrystals. The results are also compared with the predictions of isotropic-matrix porous plasticity models to assess the effect of the possible matrix anisotropy in textured samples.
Fil: Lebensohn, Ricardo Anibal. Los Alamos National Laboratory; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Idiart, Martín Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Aeronáutica; Argentina
Fil: Castañeda, P. Ponte. Institutos Madrileños de Estudios Avanzados; España. University of Pennsylvania; Estados Unidos
Fil: Vincent, P.-G.. Institut de Radioprotection et de Sûreté Nucléaire; Francia. Centre National de la Recherche Scientifique; Francia - Materia
-
VOIDS
PLASTICITY OF METALS
TEXTURE
ANISOTROPIC PROPERTIES - 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:11336/95192
Ver los metadatos del registro completo
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Dilatational viscoplasticity of polycrystalline solids with intergranular cavitiesLebensohn, Ricardo AnibalIdiart, Martín IgnacioCastañeda, P. PonteVincent, P.-G.VOIDSPLASTICITY OF METALSTEXTUREANISOTROPIC PROPERTIEShttps://purl.org/becyt/ford/2.3https://purl.org/becyt/ford/2We propose constitutive models for polycrystalline aggregates with intergranular cavities and test them against full-field numerical simulations. Such conditions are prevalent in many engineering applications and failure of metallic components (e.g. HIPing and other forming processes, spallation under dynamic loading conditions, etc.), where the dilatational effects associated with the presence of cavities must be accounted for, and standard polycrystalline models for incompressible plasticity are not appropriate. On the other hand, it is not clear that the use of porous plasticity models with isotropic matrix behavior is relevant, particularly, when large deformations can lead to significant texture evolution and therefore to strong matrix anisotropy. Of course, finite strains can also lead to significant changes in the porosity and pore shape, resulting in additional anisotropy development. In this work, we make use of ‘variational linear-comparison’ homogenization methods to develop constitutive models simultaneously accounting for texture of the matrix, porosity and average pore shape and orientation. The predictions of the models are compared with full-field numerical simulations based on fast Fourier transforms to study the influence of different microstructural features (e.g. overall porosity, texture of the matrix phase, single-crystal anisotropy, etc.) and type of loading (triaxiality) on the dilatational viscoplastic behavior of voided polycrystals. The results are also compared with the predictions of isotropic-matrix porous plasticity models to assess the effect of the possible matrix anisotropy in textured samples.Fil: Lebensohn, Ricardo Anibal. Los Alamos National Laboratory; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Idiart, Martín Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Aeronáutica; ArgentinaFil: Castañeda, P. Ponte. Institutos Madrileños de Estudios Avanzados; España. University of Pennsylvania; Estados UnidosFil: Vincent, P.-G.. Institut de Radioprotection et de Sûreté Nucléaire; Francia. Centre National de la Recherche Scientifique; FranciaTaylor & Francis Ltd2011-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/95192Lebensohn, Ricardo Anibal; Idiart, Martín Ignacio; Castañeda, P. Ponte; Vincent, P.-G.; Dilatational viscoplasticity of polycrystalline solids with intergranular cavities; Taylor & Francis Ltd; Philosophical Magazine; 91; 22; 8-2011; 3038-30671478-6435CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/14786435.2011.561811info:eu-repo/semantics/altIdentifier/doi/10.1080/14786435.2011.561811info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:55:00Zoai:ri.conicet.gov.ar:11336/95192instacron: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 09:55:01.049CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Dilatational viscoplasticity of polycrystalline solids with intergranular cavities |
title |
Dilatational viscoplasticity of polycrystalline solids with intergranular cavities |
spellingShingle |
Dilatational viscoplasticity of polycrystalline solids with intergranular cavities Lebensohn, Ricardo Anibal VOIDS PLASTICITY OF METALS TEXTURE ANISOTROPIC PROPERTIES |
title_short |
Dilatational viscoplasticity of polycrystalline solids with intergranular cavities |
title_full |
Dilatational viscoplasticity of polycrystalline solids with intergranular cavities |
title_fullStr |
Dilatational viscoplasticity of polycrystalline solids with intergranular cavities |
title_full_unstemmed |
Dilatational viscoplasticity of polycrystalline solids with intergranular cavities |
title_sort |
Dilatational viscoplasticity of polycrystalline solids with intergranular cavities |
dc.creator.none.fl_str_mv |
Lebensohn, Ricardo Anibal Idiart, Martín Ignacio Castañeda, P. Ponte Vincent, P.-G. |
author |
Lebensohn, Ricardo Anibal |
author_facet |
Lebensohn, Ricardo Anibal Idiart, Martín Ignacio Castañeda, P. Ponte Vincent, P.-G. |
author_role |
author |
author2 |
Idiart, Martín Ignacio Castañeda, P. Ponte Vincent, P.-G. |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
VOIDS PLASTICITY OF METALS TEXTURE ANISOTROPIC PROPERTIES |
topic |
VOIDS PLASTICITY OF METALS TEXTURE ANISOTROPIC PROPERTIES |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/2.3 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
We propose constitutive models for polycrystalline aggregates with intergranular cavities and test them against full-field numerical simulations. Such conditions are prevalent in many engineering applications and failure of metallic components (e.g. HIPing and other forming processes, spallation under dynamic loading conditions, etc.), where the dilatational effects associated with the presence of cavities must be accounted for, and standard polycrystalline models for incompressible plasticity are not appropriate. On the other hand, it is not clear that the use of porous plasticity models with isotropic matrix behavior is relevant, particularly, when large deformations can lead to significant texture evolution and therefore to strong matrix anisotropy. Of course, finite strains can also lead to significant changes in the porosity and pore shape, resulting in additional anisotropy development. In this work, we make use of ‘variational linear-comparison’ homogenization methods to develop constitutive models simultaneously accounting for texture of the matrix, porosity and average pore shape and orientation. The predictions of the models are compared with full-field numerical simulations based on fast Fourier transforms to study the influence of different microstructural features (e.g. overall porosity, texture of the matrix phase, single-crystal anisotropy, etc.) and type of loading (triaxiality) on the dilatational viscoplastic behavior of voided polycrystals. The results are also compared with the predictions of isotropic-matrix porous plasticity models to assess the effect of the possible matrix anisotropy in textured samples. Fil: Lebensohn, Ricardo Anibal. Los Alamos National Laboratory; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Idiart, Martín Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ingeniería. Departamento de Aeronáutica; Argentina Fil: Castañeda, P. Ponte. Institutos Madrileños de Estudios Avanzados; España. University of Pennsylvania; Estados Unidos Fil: Vincent, P.-G.. Institut de Radioprotection et de Sûreté Nucléaire; Francia. Centre National de la Recherche Scientifique; Francia |
description |
We propose constitutive models for polycrystalline aggregates with intergranular cavities and test them against full-field numerical simulations. Such conditions are prevalent in many engineering applications and failure of metallic components (e.g. HIPing and other forming processes, spallation under dynamic loading conditions, etc.), where the dilatational effects associated with the presence of cavities must be accounted for, and standard polycrystalline models for incompressible plasticity are not appropriate. On the other hand, it is not clear that the use of porous plasticity models with isotropic matrix behavior is relevant, particularly, when large deformations can lead to significant texture evolution and therefore to strong matrix anisotropy. Of course, finite strains can also lead to significant changes in the porosity and pore shape, resulting in additional anisotropy development. In this work, we make use of ‘variational linear-comparison’ homogenization methods to develop constitutive models simultaneously accounting for texture of the matrix, porosity and average pore shape and orientation. The predictions of the models are compared with full-field numerical simulations based on fast Fourier transforms to study the influence of different microstructural features (e.g. overall porosity, texture of the matrix phase, single-crystal anisotropy, etc.) and type of loading (triaxiality) on the dilatational viscoplastic behavior of voided polycrystals. The results are also compared with the predictions of isotropic-matrix porous plasticity models to assess the effect of the possible matrix anisotropy in textured samples. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-08 |
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/11336/95192 Lebensohn, Ricardo Anibal; Idiart, Martín Ignacio; Castañeda, P. Ponte; Vincent, P.-G.; Dilatational viscoplasticity of polycrystalline solids with intergranular cavities; Taylor & Francis Ltd; Philosophical Magazine; 91; 22; 8-2011; 3038-3067 1478-6435 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/95192 |
identifier_str_mv |
Lebensohn, Ricardo Anibal; Idiart, Martín Ignacio; Castañeda, P. Ponte; Vincent, P.-G.; Dilatational viscoplasticity of polycrystalline solids with intergranular cavities; Taylor & Francis Ltd; Philosophical Magazine; 91; 22; 8-2011; 3038-3067 1478-6435 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/14786435.2011.561811 info:eu-repo/semantics/altIdentifier/doi/10.1080/14786435.2011.561811 |
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 |
dc.publisher.none.fl_str_mv |
Taylor & Francis Ltd |
publisher.none.fl_str_mv |
Taylor & Francis Ltd |
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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1844613661415440384 |
score |
13.070432 |