Finite element analysis of the damage and healing behavior of self-healing ceramic materials

Shingo Ozaki, Toshio Osada, Wataru Nakao

Abstract

Self-healing of crack-damaged brittle ceramics is a valuable phenomenon that counteracts the reliability decrease caused by undesired cracking during service. In this study, we developed a constitutive model to analyze the behavior of self-healing ceramic materials within the framework of a finite element method (FEM), which can describe not only an isotropic damage process under specific boundary conditions, but also self-healing at high temperatures and O2 partial pressures. The damage process was formulated based on the fracture mechanics, while self-healing was described using oxidation kinetics modeling of self-healing time. In addition, the proposed constitutive model was applied to a FE analysis of alumina/15 vol.% SiC nanocomposite materials.

Original languageEnglish
Pages (from-to)307-318
Number of pages12
JournalInternational Journal of Solids and Structures
Volume100-101
DOIs
StatePublished - 2016 Dec 1

Fingerprint

Self-healing materials
Ceramic materials
Constitutive models
Finite element method
Fracture mechanics
Partial pressure
Nanocomposites
Alumina
Boundary conditions
Cracks
Oxidation
Kinetics
Temperature

Keywords

  • Constitutive model
  • Continuum damage mechanics
  • FEM
  • Oxidation kinetics
  • Self-healing

ASJC Scopus subject areas

  • Modelling and Simulation
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Applied Mathematics

Cite this

Finite element analysis of the damage and healing behavior of self-healing ceramic materials. / Ozaki, Shingo; Osada, Toshio; Nakao, Wataru.

In: International Journal of Solids and Structures, Vol. 100-101, 01.12.2016, p. 307-318.

Research output: Contribution to journalArticle

Ozaki, Shingo; Osada, Toshio; Nakao, Wataru / Finite element analysis of the damage and healing behavior of self-healing ceramic materials.

In: International Journal of Solids and Structures, Vol. 100-101, 01.12.2016, p. 307-318.

Research output: Contribution to journalArticle

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