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Article: An optimization-based computational model for domain evolution in polycrystalline ferroelastics

TitleAn optimization-based computational model for domain evolution in polycrystalline ferroelastics
Authors
KeywordsDomain Switching
Ferroelastics
Optimization
Plasticity
Polycrystalline
Issue Date2010
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/actamat
Citation
Acta Materialia, 2010, v. 58 n. 6, p. 2207-2215 How to Cite?
AbstractAn optimization-based computational model is proposed to study domain evolution in polycrystalline ferroelastics composed of numerous randomly oriented grains, each of which consists of multiple types of domains. Under any prescribed loading, the volume fraction of each domain in a grain is obtained by minimizing the free energy of the said grain using an optimization method. The mechanical constraint from the neighboring grains is considered using Eshelby inclusion approach. This model has the similar superiority as the phase field model, which does not require imposition of any priori domain-switching criterion. The computational efficiency of this model is fairly high and it is feasible to study three-dimensional cases using numerous grains. Furthermore, this model can reproduce Taylor's rule of plasticity very well. Simulation results for tetragonal, rhombohedral and morphotropic PZT ceramics are employed to validate the superiority and efficiency of this model. The domain texture evolution process can also be calculated. © 2009 Acta Materialia Inc.
Persistent Identifierhttp://hdl.handle.net/10722/157052
ISSN
2015 Impact Factor: 5.058
2015 SCImago Journal Rankings: 3.683
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, FXen_US
dc.contributor.authorSoh, AKen_US
dc.date.accessioned2012-08-08T08:45:07Z-
dc.date.available2012-08-08T08:45:07Z-
dc.date.issued2010en_US
dc.identifier.citationActa Materialia, 2010, v. 58 n. 6, p. 2207-2215en_US
dc.identifier.issn1359-6454en_US
dc.identifier.urihttp://hdl.handle.net/10722/157052-
dc.description.abstractAn optimization-based computational model is proposed to study domain evolution in polycrystalline ferroelastics composed of numerous randomly oriented grains, each of which consists of multiple types of domains. Under any prescribed loading, the volume fraction of each domain in a grain is obtained by minimizing the free energy of the said grain using an optimization method. The mechanical constraint from the neighboring grains is considered using Eshelby inclusion approach. This model has the similar superiority as the phase field model, which does not require imposition of any priori domain-switching criterion. The computational efficiency of this model is fairly high and it is feasible to study three-dimensional cases using numerous grains. Furthermore, this model can reproduce Taylor's rule of plasticity very well. Simulation results for tetragonal, rhombohedral and morphotropic PZT ceramics are employed to validate the superiority and efficiency of this model. The domain texture evolution process can also be calculated. © 2009 Acta Materialia Inc.en_US
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/actamaten_US
dc.relation.ispartofActa Materialiaen_US
dc.subjectDomain Switchingen_US
dc.subjectFerroelasticsen_US
dc.subjectOptimizationen_US
dc.subjectPlasticityen_US
dc.subjectPolycrystallineen_US
dc.titleAn optimization-based computational model for domain evolution in polycrystalline ferroelasticsen_US
dc.typeArticleen_US
dc.identifier.emailSoh, AK:aksoh@hkucc.hku.hken_US
dc.identifier.authoritySoh, AK=rp00170en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.actamat.2009.12.006en_US
dc.identifier.scopuseid_2-s2.0-76149146972en_US
dc.identifier.hkuros171049-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-76149146972&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume58en_US
dc.identifier.issue6en_US
dc.identifier.spage2207en_US
dc.identifier.epage2215en_US
dc.identifier.isiWOS:000275511700029-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridLi, FX=24449137300en_US
dc.identifier.scopusauthoridSoh, AK=7006795203en_US
dc.identifier.citeulike6513934-

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