SEDL / STP / STP1201-EB / STP12788S

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

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

Pages: 9    Published: Jan 1994

Download this paper for $25 PDF (168K)          View License Agreement
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.