Constitutive model for plasticity in an amorphous polycarbonate (Articolo in rivista)

Type
Label
  • Constitutive model for plasticity in an amorphous polycarbonate (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevE.76.041806 (literal)
Alternative label
  • Fortunelli A., Ortiz M. (2007)
    Constitutive model for plasticity in an amorphous polycarbonate
    in Physical review. E, Statistical, nonlinear, and soft matter physics (Print); American Physical Society (APS), College Pk (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Fortunelli A., Ortiz M. (literal)
Pagina inizio
  • 041806 (literal)
Pagina fine
  • 041806 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 76 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • IPCF-CNR (Italy); Caltech (USA) (literal)
Titolo
  • Constitutive model for plasticity in an amorphous polycarbonate (literal)
Abstract
  • A constitutive model for describing the mechanical response of an amorphous glassy polycarbonate is proposed. The model is based on an isotropic elastic phase surrounded by an SO(3) continuum of plastic phases onto which the elastic phase can collapse under strain. An approximate relaxed energy is developed for this model on the basis of physical considerations and extensive numerical testing, and it is shown that it corresponds to an ideal elastic-plastic behavior. Kinetic effects are introduced as rate-independent viscoplasticity, and a comparison with experimental data is presented, showing that the proposed model is able to capture the main features of the plastic behavior of amophous glassy polycarbonate. (literal)
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