Effect of microstructural parameters on the fracture behavior of fiber-reinforced ceramics

Yu Fu Liu, Chitoshi Masuda, Ryoji Yuuki

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

A bridging law which includes both interfacial debonding and sliding properties in fiber-reinforced ceramics is applied to fiber bridging analysis and crack growth problems by treating bridging fibers as a distribution of closure stress. A numerical method to solve distributed spring model of a penny-shaped crack is provided to determine the bridging stress, debond length, crack opening displacement and stress intensity factor. By introducing fracture criteria of the composite and fiber, crack growth behavior in R-curve for the penny-shaped crack are simulated and the effects of such micro structural parameters as interface debonding toughness, compressive residual stress, frictional sliding stress, and fiber volume fraction on the R-curve are quantified in an explicit manner. On the basis of R-curve results, the toughening mechanism of fiber-reinforced ceramics is discussed.

Original languageEnglish
Pages (from-to)111-121
Number of pages11
JournalMechanics of Materials
Volume29
Issue number2
Publication statusPublished - 1998 Jul
Externally publishedYes

Fingerprint

cracks
crack bridging
ceramics
fibers
Fibers
sliding
curves
Debonding
fiber volume fraction
Cracks
crack opening displacement
stress intensity factors
Crack propagation
toughness
closures
residual stress
Toughening
Compressive stress
Stress intensity factors
Toughness

Keywords

  • Fiber-reinforced ceramics
  • Fracture behavior
  • Microstructural parameters

ASJC Scopus subject areas

  • Mechanics of Materials

Cite this

Effect of microstructural parameters on the fracture behavior of fiber-reinforced ceramics. / Liu, Yu Fu; Masuda, Chitoshi; Yuuki, Ryoji.

In: Mechanics of Materials, Vol. 29, No. 2, 07.1998, p. 111-121.

Research output: Contribution to journalArticle

Liu, Yu Fu ; Masuda, Chitoshi ; Yuuki, Ryoji. / Effect of microstructural parameters on the fracture behavior of fiber-reinforced ceramics. In: Mechanics of Materials. 1998 ; Vol. 29, No. 2. pp. 111-121.
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