Influence of Mean Stress on Low Cycle Fatigue in High Temperature Water

Topics:
Mechanical and Industrial
Tags:
General Electric Co.,
Influence,
Temperature
Source:
General Electric

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Overview: This study considers the influence of mean stress in tests run in high temperature water. It was performed to assess the mean stress approach taken by the ASME Boiler and Pressure Vessel Code Section III, which was based upon data obtained in room temperature tests run in air. It was found, from load controlled tests, that the approach formulated by Morrow is the best descriptor of the influence of mean stresses. The Goodman approach utilized by the code was found to be conservative, the Soderberg approach even more conservative and the Gerber approach slightly non-conservative.

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Format: PDF | Size: 717KB | Date: May 2000 | Pages: 31


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