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

Yu Fu Liu, Chitoshi Masuda, Ryoji Yuuki

研究成果: Article査読

15 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)111-121
ページ数11
ジャーナルMechanics of Materials
29
2
出版ステータスPublished - 1998 7
外部発表はい

ASJC Scopus subject areas

  • Mechanics of Materials

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