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Benchmark Calibration Tests Completed for Stirling Convertor Heater Head Life AssessmentA major phase of benchmark testing has been completed at the NASA Glenn Research Center (, where a critical component of the Stirling Radioisotope Generator (SRG) is undergoing extensive experimentation to aid the development of an analytical life-prediction methodology. Two special-purpose test rigs subjected SRG heater-head pressure-vessel test articles to accelerated creep conditions, using the standard design temperatures to stay within the wall material s operating creep-response regime, but increasing wall stresses up to 7 times over the design point. This resulted in well-controlled "ballooning" of the heater-head hot end. The test plan was developed to provide critical input to analytical parameters in a reasonable period of time.
Document ID
Acquisition Source
Glenn Research Center
Document Type
Krause, David L.
(NASA Glenn Research Center Cleveland, OH, United States)
Halford, Gary R.
(NASA Glenn Research Center Cleveland, OH, United States)
Bowman, Randy R.
(NASA Glenn Research Center Cleveland, OH, United States)
Date Acquired
September 7, 2013
Publication Date
June 1, 2005
Publication Information
Publication: Research and Technology 2004
Subject Category
Quality Assurance And Reliability
Distribution Limits
Work of the US Gov. Public Use Permitted.
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