STP1201

    Determination of Defect Distributions for Use in Failure Theories of Load Bearing Ceramics

    Published: Jan 1994


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    Abstract

    Probabilistic failure theories have been developed for predicting the structural reliability of complex components subjected to conditions of multiaxial stress. Embodied in these theories are material failure characteristics which describe the statistical variation of defects within the volume and over the surface of the material. In this paper a method is presented for analysing the strength data. It is shown how the respective volume and surface defect distributions can be analysed to yield the strength parameters required by the various probabilistic multiaxial failure stress theories.

    Keywords:

    probability, strength, ceramic, characterisation, Weibull, failure, fracture, probabilistic design, defects


    Author Information:

    Margetson, J
    Director, Defence Research Consultancy Limited, Aylesbury, Bucks


    Paper ID: STP12788S

    Committee/Subcommittee: C28.94

    DOI: 10.1520/STP12788S


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