Damage and Plasticity at the interfaces in composite materials and structures

Giuseppe Giambanco, Antonino Spada, Piervincenzo Rizzo

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37 Citazioni (Scopus)

Abstract

The structural behavior at the interface between two surfaces of ductile, brittleor quasi-brittle materials is studied by a new analytical elasto-plastic damagingmodel. The model is developed in the framework of a thermodynamically consistenttheory. The Helmholtz free energy is written to predict the materials’ hardening orsoftening. An isotropic damage is considered and the possible effects of dilatancyare taken into account including non-associative flow rules. The interface laws arepresented both in a rate and a discrete incremental form. The analytical formulationis then implemented into a finite element code and two structural members arestudied to validate the model. The numerical results are compared to experimentaldata available in literature. It is demonstrated that the new model is general and itincludes the continuum damage mechanics and the elastoplasticity as limit cases.
Lingua originaleEnglish
pagine (da-a)3884-3901
Numero di pagine18
RivistaComputer Methods in Applied Mechanics and Engineering
Volume198
Stato di pubblicazionePublished - 2009

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All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Mechanics of Materials
  • Mechanical Engineering
  • Physics and Astronomy(all)
  • Computer Science Applications

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