Applications of Strain Cycling Considerations to Superheat Fuel Design

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Description

A potential performance limitation of superheat fuel is the susceptibility of the fuel cladding to low cycle fatigue failure. Two simplified analytical methods are presented to estimate the cyclic lifetime of circular superheat fuel cladding. One failure relation is based on a displacement method. The other failure relation is based on a stress method. These relations were compared with data from the literature, and with data involving damage obtained by Reynolds. A recommended design procedure involving the relations is presented. The technique was applied to the SADE 4B experiment with moderate success. These cycling relations involve only mechanical damage imposed … continued below

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iv, 30 pages ; illustrations.

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Rieger, G. F. June 1963.

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A potential performance limitation of superheat fuel is the susceptibility of the fuel cladding to low cycle fatigue failure. Two simplified analytical methods are presented to estimate the cyclic lifetime of circular superheat fuel cladding. One failure relation is based on a displacement method. The other failure relation is based on a stress method. These relations were compared with data from the literature, and with data involving damage obtained by Reynolds. A recommended design procedure involving the relations is presented. The technique was applied to the SADE 4B experiment with moderate success. These cycling relations involve only mechanical damage imposed by cycling, with a modification for additional damage caused by radiation; they do not include any other potential performance limiting mechanisms, such as stress corrosion, which are normally factored into the over-all fuel design. This work work done under Task C (Materials Development) of the Nuclear Superheat Project, AEC Contract AT(04-3)-189 - Project Agreement 13.

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iv, 30 pages ; illustrations.

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Digitized from microopaque cards.

U.S. Atomic Energy Commission Contract AT(04-3)-189 Project Agreement 13.

Includes bibliographic references (page 30).

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  • Report No.: GEAP-4244
  • Grant Number: AT(04-3)-189 PA #13
  • SuDoc Number: Y 3.At 7:22/GEAP-4244
  • Accession or Local Control No: metadc1201351
  • Archival Resource Key: ark:/67531/metadc1201351

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Technical Report Archive and Image Library

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  • June 1963

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  • Aug. 15, 2019, 10:26 p.m.

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  • May 21, 2020, 11:49 a.m.

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Rieger, G. F. Applications of Strain Cycling Considerations to Superheat Fuel Design, report, June 1963; San Jose, California.. (https://digital.library.unt.edu/ark:/67531/metadc1201351/: accessed May 29, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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