The normalization method is adopted in this paper to determine J-R curves for X60 pipeline steel using single-edge notched tension (SENT) specimens. A resistance curve procedure associated with the normalization method is developed to estimate crack extension, calculate crack growth corrected J-integral and generate a J-R curve directly using load-displacement data from a single test on SENT specimens. Based on experimental data for a typical pin-loaded SENT specimen, J-R curve for X60 pipeline steel is obtained by the normalization method and the conventional elastic unloading compliance method. The results show that the normalization method is simple and cost-effective, and can obtain J-R curves equivalent to the unloading compliance method in use of SENT specimens.
- Pressure Vessels and Piping
Determination of J-R Curve for X60 Pipeline Steel Using SENT Specimens and Normalization Method
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Zhu, X, Cravero, S, & Ruggieri, C. "Determination of J-R Curve for X60 Pipeline Steel Using SENT Specimens and Normalization Method." Proceedings of the ASME 2009 Pressure Vessels and Piping Conference. Volume 6: Materials and Fabrication, Parts A and B. Prague, Czech Republic. July 26–30, 2009. pp. 1219-1224. ASME. https://doi.org/10.1115/PVP2009-78089
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