A computerized database was compiled with results from over 3000 CT fatigue and mechanical tests conducted over a 10 year period. The database contains detailed information about tensile properties (yield and ultimate strengths) for individual samples that were tested to failure under constant internal pressure with specialized CT fatigue testing fixtures. This paper presents a survey of those data to assess the variability in the mechanical properties within a specific CT material grade and to investigate the effect of this variation on CT fatigue behavior.

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