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dc.contributor.authorKrasnikov, Vasiliy S.
dc.contributor.authorMayer, Alexander E.
dc.date.accessioned2016-01-13T15:42:54Z
dc.date.available2016-01-13T15:42:54Z
dc.date.issued2015
dc.identifier.citationKrasnikov, Vasiliy S.; Mayer, Alexander E. Two level investigation of plasticity driven growth of nanovoids under high rate tension of aluminum. A: COMPLAS XIII. "COMPLAS XIII : proceedings of the XIII International Conference on Computational Plasticity : fundamentals and applications". CIMNE ed. Barcelona: CIMNE, 2015, p. 440-448.
dc.identifier.isbn978-84-944244-6-5
dc.identifier.urihttp://hdl.handle.net/2117/81374
dc.description.abstractWith the help of molecular dynamics simulations the mechanism of nanovoid growth in aluminum under high rate tension is studied. We interpret the growth of nanovoids as the result of plastic deformation in zone close to void and corresponding atom rearrangement on void surface. The dependencies of critical negative pressure in systems of various atom number and void diameter at various temperatures are researched. It is shown,that critical pressure depends both on void diameter and simulated area size. Increase of temperature leads to linear decrease of system tensile strength. Also, some attention is givento the influence of initial stacking faults on critical pressure. The continuum model connectsthe void growth rate with the plastic flow around a void. The generation of dislocations near avoid surface is described with the Arrhenius type relation; the parameters of this relation arefitted by comparison with molecular dynamics data.
dc.format.extent9 p.
dc.language.isoeng
dc.publisherCIMNE
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials::Metal·lúrgia
dc.subject.lcshFinite element method
dc.subject.lcshPlasticity -- Mathematical models
dc.subject.lcshPlasticity
dc.subject.lcshAluminum
dc.subject.otherMolecular dynamics
dc.subject.otherContinuum model
dc.subject.otherNanovoid growth
dc.subject.otherDislocation plasticity
dc.titleTwo level investigation of plasticity driven growth of nanovoids under high rate tension of aluminum
dc.typeConference lecture
dc.subject.lemacElements finits, Mètode dels
dc.subject.lemacPlasticitat -- Models matemàtics
dc.subject.lemacPlasticitat
dc.subject.lemacAlumini
dc.rights.accessOpen Access
upcommons.citation.contributorCOMPLAS XIII
upcommons.citation.pubplaceBarcelona
upcommons.citation.publishedtrue
upcommons.citation.publicationNameCOMPLAS XIII : proceedings of the XIII International Conference on Computational Plasticity : fundamentals and applications
upcommons.citation.startingPage440
upcommons.citation.endingPage448
upcommons.citation.editionCIMNE


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