A critical survey of the state-of-the-art of mechanical property tests of brittle materials are presented. The format utilized in presenting the information is based on property categories, since no significant breakdown for specific materials is justified. The common characteristics of the materials included in the survey permit general testing procedures to be discussed, with special adaptations de¬veloped for certain materials being applicable to all.nThe capabilities in programming test performance variables have exceeded the ability to define materials and performance requirements. Large gaps still remain in the statistical interpretation of strength and other material parameters, particularity under conditions of complex stress-state and with previous exposure to testing conditions. Certain probabilistic descriptors have shown promising indications, but much remains to be explored in this area.nThis technical documentary report has been reviewed and is approved.
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