Numerical study of deformation and fracture of ceramics nanocomposite with different structural parameters under mechanical loading

Igor S. Konovalenko, Egor M. Vodopjyanov, Evgenii V. Shilko

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Deformation, fracture and effective mechanical properties of sintered ceramics composite under uniaxial compression were studied. To perform this investigation the plain numerical model of ceramics composites based on oxides of zirconium and aluminum with different structural parameters was developed. The model construction was carried out within the frame of particle based method, namely the movable cellular automaton method (MCA). The implementation of the phase transition in the MCA-model composite was carried out on the basis of the phenomenological approach, the main point of which was the formulation of the principle of irreversible mechanical behavior of the material. Increase the fracture toughness of ceramics after (T-M) transition in its structure was realized in the model by introducing transition kinetics of the automata pair from "bound" to an "unbound" state. The structure of model composite was generated on the basis of scanning electron microscope images of micro-sections of real composite. The influence of such structural parameters as geometrical dimensions of layers, inclusions, and their spatial distribution in the sample, volume content of the composite components and their mechanical properties, as well as the amount of zirconium dioxide undergone the phase transformation on the mechanical response were investigated.

Original languageEnglish
Title of host publicationMultifunctional Materials
Subtitle of host publicationDevelopment and Application
EditorsIrina Kurzina, Anna Godymchuk
PublisherTrans Tech Publications Ltd
Pages601-608
Number of pages8
ISBN (Print)9783038357292
DOIs
Publication statusPublished - 1 Jan 2016
Event12th International Conference on Prospects of Fundamental Sciences Development, PFSD 2015 - Tomsk, Russian Federation
Duration: 21 Apr 201524 Apr 2015

Publication series

NameKey Engineering Materials
Volume683
ISSN (Print)1013-9826

Conference

Conference12th International Conference on Prospects of Fundamental Sciences Development, PFSD 2015
CountryRussian Federation
CityTomsk
Period21.4.1524.4.15

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Keywords

  • Computer simulation
  • Deformation
  • Effective mechanical properties
  • Fracture
  • Polymorphic transition
  • Sintered ceramics nanocomposite

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Konovalenko, I. S., Vodopjyanov, E. M., & Shilko, E. V. (2016). Numerical study of deformation and fracture of ceramics nanocomposite with different structural parameters under mechanical loading. In I. Kurzina, & A. Godymchuk (Eds.), Multifunctional Materials: Development and Application (pp. 601-608). (Key Engineering Materials; Vol. 683). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.683.601