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    Fracture statistics of dental ceramics: Discrimination of strength distributions

    185630_185630 Full.pdf (2.798Mb)
    Access Status
    Open access
    Authors
    Nohut, S.
    Lu, Chunsheng
    Date
    2012
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Nohut, Serkan and Lu, Chunsheng. 2012. Fracture statistics of dental ceramics: Discrimination of strength distributions. Ceramics International. 38 (6) pp. 4979-4990.
    Source Title
    Ceramics International
    DOI
    10.1016/j.ceramint.2012.02.093
    ISSN
    02728842
    School
    Department of Mechanical Engineering
    Remarks

    NOTICE: This is the author’s version of a work that was accepted for publication in Ceramics International. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Ceramics International, Vol. 38, Issue 6, (August 2012).

    URI
    http://hdl.handle.net/20.500.11937/23767
    Collection
    • Curtin Research Publications
    Abstract

    The Weibull distribution is the most widely used function in the reliability analysis and structural design of dental ceramics; however, it is still unclear whether Weibull distribution is always the most suitable one. With wide applications of dental ceramics, a special attention has been paid in discriminating their strength distributions. In this paper, three versatile functions, involving normal, log-normal and Weibull distributions, are applied to the analysis of ten strength data sets of dental ceramics with different compositions and the results are compared in terms of the Akaike information criterion and the Anderson-Darling test. It reveals that various microstructures and compositions in the investigated dental ceramics cause their strength distributions deviated from the Weibull distribution. The influence of microstructure induced fracture properties (multiple-modal flaw size distribution, R-curve behavior and subcritical crack growth) on strength distributions is discussed.

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