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dc.contributor.author
Idiart, Martín Ignacio

dc.contributor.author
Ramos Nervi, Juan Eduardo

dc.date.available
2017-09-19T19:52:16Z
dc.date.issued
2014-01
dc.identifier.citation
Idiart, Martín Ignacio; Ramos Nervi, Juan Eduardo; Bounds on the hydrostatic plastic strength of voided polycrystals and implications for linear-comparison homogenization techniques; Elsevier France-editions Scientifiques Medicales Elsevier; Comptes Rendus Mecanique; 342; 1; 1-2014; 25-31
dc.identifier.issn
1631-0721
dc.identifier.uri
http://hdl.handle.net/11336/24625
dc.description.abstract
A linear-comparison homogenization technique and its relaxed version are used to compute bounds of the Hashin–Shtrikman and the self-consistent types for the hydrostatic strength of ideally plastic voided polycrystals. Closed-form analytical results are derived for isotropic aggregates of various cubic symmetries (fcc, bcc, ionic). The impact of the variational relaxation on the bounds is found to be significantly larger than that previously observed in fully dense polycrystals. So much so that, quite surprisingly, relaxed self-consistent bounds are found to be weaker than non-relaxed Hashin–Shtrikman bounds in some of the material systems considered.
dc.description.abstract
Une technique dʼhomogénéisation non linéaire et sa version relaxée sont utilisées pour calculer des bornes de types Hashin–Shtrikman et autocohérent pour la resistance hydrostatique de polycristaux poreux parfaitement plastiques. On en dérive des résultats analytiques pour des agrégats isotropes de différentes symétries cubiques (cfc, ccc, ionique). Lʼimpact sur les bornes de la relaxation variationnelle se révèle être beaucoup plus important que celui précédemment observé dans le cas de polycristaux denses, tant et si bien que des bornes relaxées de type autocohérent sʼavèrent être plus faibles que des bornes non relaxées de type Hashin–Shtrikman dans certains systèmes matériels considérés.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier France-editions Scientifiques Medicales Elsevier

dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Polycrystals
dc.subject
Plasticity
dc.subject
Homogenization
dc.subject
Bounds
dc.subject.classification
Ingeniería Mecánica

dc.subject.classification
Ingeniería Mecánica

dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS

dc.title
Bounds on the hydrostatic plastic strength of voided polycrystals and implications for linear-comparison homogenization techniques
dc.title
Bornes de la résistance plastique hydrostatique des polycrystaux poreux et leurs implications sur des techniques basées sur des milieux linéaires de comparaison
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-09-18T14:29:23Z
dc.journal.volume
342
dc.journal.number
1
dc.journal.pagination
25-31
dc.journal.pais
Francia

dc.journal.ciudad
Paris
dc.description.fil
Fil: Idiart, Martín Ignacio. Universidad Nacional de la Plata. Facultad de Ingeniería. Departamento de Aeronautica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Ramos Nervi, Juan Eduardo. Universidad Nacional de La Plata. Facultad de Ingeniería; Argentina
dc.journal.title
Comptes Rendus Mecanique

dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://linkinghub.elsevier.com/retrieve/pii/S1631072113001551
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.crme.2013.11.002
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