Consequences of Varying Surface Heat Transfer Coefficients, Material Properties, and Cyclical Ambient Temperatures upon Stress Intensity Factors for Edge Cracks

AF Emery; AS Kobayashi; TR Bieler

doi:10.1520/STP28310S

SYMPOSIA PAPER Published: 01 January 1981

STP28310S

Consequences of Varying Surface Heat Transfer Coefficients, Material Properties, and Cyclical Ambient Temperatures upon Stress Intensity Factors for Edge Cracks

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Stress intensity factors were calculated for an edge crack subjected to time varying surface heat transfer coefficients and to cyclical ambient temperatures. Both constant and varying material properties were used and values of K_I are presented as functions of crack depth and time. Substantial changes in the maximum values of K_I were noted for these different cases. In general, quench tests with specimens whose material properties increase with temperature show much lower values of K_I than do specimens with material properties which are either constant or decrease with temperature.

Author Information

Emery, AF

University of Washington, Seattle, Wash.

Kobayashi, AS

University of Washington, Seattle, Wash.

Bieler, TR

University of Washington, Seattle, Wash.

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Details

Developed by Committee: E08

Pages: 257–272

DOI: 10.1520/STP28310S

ISBN-EB: 978-0-8031-4811-6

ISBN-13: 978-0-8031-0731-1

Consequences of Varying Surface Heat Transfer Coefficients, Material Properties, and Cyclical Ambient Temperatures upon Stress Intensity Factors for Edge Cracks

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