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The effect of specimen geometry on the tensile strength of graphite

โœ Scribed by J.L. Jackson; M.E. Freed

Publisher
Elsevier Science
Year
1965
Tongue
English
Weight
885 KB
Volume
3
Category
Article
ISSN
0008-6223

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โœฆ Synopsis

An investigation of the effect of specimen geometry on the tensile strengths of two nuclear graphites using seven different tensile specimen shapes has been conducted. The design of some samples gave rise to stress concentrations where the fillet met the gage section. Evidence has been obtained that geometry effects can reduce the apparent tensile strength of graphite by as much as 34%. The most satisfactory designs, determined by reference to the strength, were the streamline fillet and the straight, cylindrical sample. A simple method of fastening the straight, cylindrical samples to a steel grip using an epoxy resin has been tested and proven satisfactory.

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