High-Temperature Properties in Relation to Design

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Description

The essential physical and mechanical properties of materials which enter into the design considerations of high-temperature systems have been outlined, and the relationship of these factors to the detailed design of structural members noted. Particular attention is given to the phenomenon of strain-cycling and relaxation, and several engineering devices wherein these effects can markedly influence design are mentioned. Techniques and apparatus for the measurement of strain-cycling and relaxation properties are described and some recent data for Inconel at 1500 F is reported. A brief discussion is presented on design-criterial for high-temperature applications, and it is pointed out that in some … continued below

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23 pages : illustrations

Creation Information

Weir, J. R.; Meghreblian, Robert V. (Robert Vartan) & Douglas, D. A. March 14, 1957.

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Description

The essential physical and mechanical properties of materials which enter into the design considerations of high-temperature systems have been outlined, and the relationship of these factors to the detailed design of structural members noted. Particular attention is given to the phenomenon of strain-cycling and relaxation, and several engineering devices wherein these effects can markedly influence design are mentioned. Techniques and apparatus for the measurement of strain-cycling and relaxation properties are described and some recent data for Inconel at 1500 F is reported. A brief discussion is presented on design-criterial for high-temperature applications, and it is pointed out that in some high performance devices the considerations of the strain-cycling phenomenon may impose the design philosophy of "steady-state" operation. Some elementary applications of strain cycling data to design are described, and test experience indicates that analytical techniques can be developed for predicting with reasonable reliability of the fatigue life of structures.

Physical Description

23 pages : illustrations

Notes

Digitized from microopaque cards (1).

Includes bibliographic references.

This paper was presented by J.R. Weir and R.V. Meghreblian at the Third Sagamore Ordnance Materials Research conference at Duke University, December, 1956.

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  • Report No.: CF-57-3-60
  • Grant Number: W-7405-eng-26
  • SuDoc Number: Y 3.At 7:22/CF-57-3-60
  • Accession or Local Control No: metadc1202874
  • Archival Resource Key: ark:/67531/metadc1202874

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  • March 14, 1957

Added to The UNT Digital Library

  • July 9, 2023, 5:30 p.m.

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  • April 17, 2024, 10:30 a.m.

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Weir, J. R.; Meghreblian, Robert V. (Robert Vartan) & Douglas, D. A. High-Temperature Properties in Relation to Design, report, March 14, 1957; Oak Ridge, Tennessee. (https://digital.library.unt.edu/ark:/67531/metadc1202874/: accessed June 5, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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