Application of Normalization Method to <i>J-R</i> Curve Testing of SA335 P11 Alloy Steel at Elevated Temperature

Zhang Xu; Pan Keqi; Liang Bingbing; Dou Yikang

doi:10.13832/j.jnpe.2015.05.0096

Volume 36 Issue 5

Feb. 2025

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Zhang Xu, Pan Keqi, Liang Bingbing, Dou Yikang. Application of Normalization Method to J-R Curve Testing of SA335 P11 Alloy Steel at Elevated Temperature[J]. Nuclear Power Engineering, 2015, 36(5): 96-100. doi: 10.13832/j.jnpe.2015.05.0096

Citation:

Zhang Xu, Pan Keqi, Liang Bingbing, Dou Yikang. Application of Normalization Method to J-R Curve Testing of SA335 P11 Alloy Steel at Elevated Temperature[J]. Nuclear Power Engineering, 2015, 36(5): 96-100. doi: 10.13832/j.jnpe.2015.05.0096

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Application of Normalization Method to J-R Curve Testing of SA335 P11 Alloy Steel at Elevated Temperature

doi: 10.13832/j.jnpe.2015.05.0096

Shanghai Nuclear Engineering Research and Design Institute, Shanghai, 200231, China

Received Date: 2014-10-21
Rev Recd Date: 2015-01-20

Available Online: 2025-02-15

Abstract

Abstract

Elastic-plastic fracture toughness parameters of nuclear piping materials at operation temperature are of significant importance to the integrity assessment and fracture analysis based on EPFM for in-situ nuclear piping structures. Conventional elastic unloading method meets limitations at elevated temperature, while the NDRT（Normalization Data Reduction Technique） performs well without the need for simultaneous crack growth monitoring. J-R curve testing using C（T） specimens are carried out at elevated temperature in this paper. To validate the NDRT, the J-R curve at elevated temperature determined using the elastic compliance method is compared with that obtained by NDRT. The result matches each other very well, which provides a reference for researchers in the investigation of the material fracture property at elevated temperatures.