Investigation of Elasticity and Strength of Ceramics Subjected to Tensile and Compressive Loads.
Interim progress rept. no. 1, 15 Apr-15 Oct 66,
STANFORD RESEARCH INST MENLO PARK CALIF
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A theoretical analysis is made to determine the effect of ellipticity on the apparent tensile strength of nominally round cylindrical specimens subjected to internal pressures. This analysis takes into account the changes in the geometry of an elliptical cylinder that are incurred during pressurization. It is shown that the effect on measured tensile strength of ellipticity 0.05, which is occasionally encountered in ceramic specimens, is small causing an error whose magnitude is well within the range of experimental data scatter. Photoelastic studies are presently under way to verify experimentally the conclusions reached in the theoretical study. Results obtained to date on specimens of various degrees of ellipticity are in agreement with theoretical predictions. Modified author abstract
- Ceramics, Refractories and Glass