The simplified model test (SMT) method is an alternate approach to determine the cyclic life at elevated temperature. It is based on the use of creep–fatigue hold time test data from test specimens with elastic follow-up conservatively designed to bound the response of general structural components. In this paper, the previously documented development of the SMT approach and applicable restrictions are reviewed; the design of the Alloy 617 SMT specimen, measurement issues and constraints are presented; initial test results and their application to a prototypic design curve are presented; and further testing and analysis for ASME code incorporation are discussed.
Alloy 617 Creep–Fatigue Damage Evaluation Using Specimens With Strain Redistribution
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received April 4, 2014; final manuscript received July 16, 2014; published online October 15, 2014. Assoc. Editor: David L. Rudland.
This manuscript has been coauthored by UT-Battelle, LLC, under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes.
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Wang, Y., Sham, T., and Jetter, R. I. (October 15, 2014). "Alloy 617 Creep–Fatigue Damage Evaluation Using Specimens With Strain Redistribution." ASME. J. Pressure Vessel Technol. April 2015; 137(2): 021402. https://doi.org/10.1115/1.4028054
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