首页> 外文会议>ASME Pressure Vessels and Piping conference >EXAMPLE ANALYSIS FOR ENVIRONMENTAL FATIGUE CRACK GROWTH IN AUSTENITIC STAINLESS STEEL PIPING USING CODE CASE N-809
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EXAMPLE ANALYSIS FOR ENVIRONMENTAL FATIGUE CRACK GROWTH IN AUSTENITIC STAINLESS STEEL PIPING USING CODE CASE N-809

机译:使用代码案例N-809分析奥氏体不锈钢管材中的环境疲劳裂纹扩展实例。

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Reference fatigue crack growth (da/dN) curves for pressurized water reactor (PWR) environments have been proposed for ASME Section Ⅺ flaw evaluation applications in Code Case N-809. The reference curves are dependent on temperature, loading rate, mean stress, and cyclic stress range which are all contained in the da/dN model. This paper presents the application of N-809 in a fatigue crack growth analysis for a large diameter austenitic pipe in a PWR Reactor Coolant System main loop using the current analytical evaluation procedures in Appendix C of ASME Section Ⅺ. The example problem was used to evaluate the reference fatigue crack growth curves during the development of the code case and the results have been compared with other industry codes.
机译:压水堆(PWR)环境的参考疲劳裂纹扩展(da / dN)曲线已在Code Case N-809的ASME第Section部分缺陷评估应用中提出。参考曲线取决于da / dN模型中包含的温度,加载速率,平均应力和循环应力范围。本文介绍了N-809在压水堆反应堆冷却剂系统主回路中大直径奥氏体管疲劳裂纹扩展分析中的应用,该分析使用ASME Section附录C中的当前分析评估程序进行。该示例问题用于在代码案例开发期间评估参考疲劳裂纹扩展曲线,并将结果与​​其他行业代码进行了比较。

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