PSI - Issue 41

Chouaib Zeghida et al. / Procedia Structural Integrity 41 (2022) 384–393 Zeghida Chouaib et al. / Structural Integrity Procedia 00 (2022) 000–000

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6. Conclusion The following conclusions are obtained from the numerical and analytical results.

1. The residual stress after IHSI can be in compression at the crack tip which mitigates sensitivity to IGSCC. 2. A simplified procedure to predict IHSI effectiveness for preflawed pipe was proposed, making use of calculation of the stress intensity factors by the superposition principle. Thus, the computational modeling studies have demonstrated the feasibility of predicting the effects of the IHSI process on weld-induced residual stresses and the applicability of computational models as a tool for better understanding the consequences of not meeting recommended guidelines for IHSI parameters in these cases. 3. If a change in residual stress is desired in mid-life, using M-PRAISE code a large effect on reducing the leak probabilities following the IHSI treatment can be observed. Acknowledgements The authors would like to thank the Ministry of Higher Education and Scientific Research (Ministère de l’Enseignement Supérieur et de la Recherche Scientifique (MESRS)), Algeria, for technical and financial support (Project no. A01L09UN410120200002). References Bolognesi Donato, G.H., Magnabosco, R., 2.11 - Modeling and Characterization of Residual Stresses in Material Processing, Editor(s): Saleem Hashmi, Gilmar Ferreira Batalha, Chester J. Van Tyne, Bekir Yilbas, Comprehensive Materials Processing, 2014, pp. 219-233, DOI:10.1016/B978-0-08-096532-1.00218-1. Boutelidja, R., Guedri, A., Belyamna, M.A., Merzoug, B., 2019. Environmental effects on the reliability of an AISI 304 structure. Frattura Ed Integrita Strutturale, 13(50), 98–111, DOI:10.3221/IGF-ESIS.50.10. Failure Analysis Associates. PRAISE Enhancements to Include General Strain Hardening Exponents and Mid-Life Residual Stress and Water Chemistry Changes. FaAA-SF-R-90-06-06, CRL-CR-105339. Prepared for Lawrence Livermore National Laboratory, Livermore, California. 1990. Guedri, A., 2013a. Reliability analysis of stainless steel piping using a single stress corrosion cracking damage parameter, Int. J. Press. Vessel. Pip., 111–112, pp. 1–11, DOI: 10.1016/j.ijpvp.2013.03.011. Guedri, A., 2013b. Effects of remedial actions on small piping reliability, Proc. Inst. Mech. Eng. Part O J. Risk Reliab., 227(2), pp. 144–161, DOI: 10.1177/1748006X13477798. Guedri, A., Djebbar,Y., Khaleel, M., and Zeghloul, A., Structural Reliability Improvement Using In-Service Inspection for Intergranular Stress Corrosion of Large Stainless Steel Piping, in Applied Fracture Mechanics. London, UK: IntechOpen, 2012. DOI: 10.5772/48521. Guedri, A., Zeghloul, A., Merzoug, B., 2009. Reliability analysis of BWR piping including the effect of residual stresses. International Review of Mechanical Engineering (I.RE.M.E.), pp. 640–645, Vol. 3, n. 5. Harris, DO., Dedhia, DD., Theoretical and user’s manual for PC-PRAISE. A probabilistic fracture mechanics computer code for piping reliability analysis, US Nuclear Regulatory Commission, Washington, DC (July 1992) NUREG/CR- 5864, UCRL-ID-109798. Khaleel, MA, Simonen, FA., Evaluations of Structural Failure Probabilities and Candidate In-service Inspection Programs. NUREG/CR-6986; PNNL-13810, Pacific Northwest National Laboratory, Richland, WA. 2009. Liu, Y., Wang, P., Fang, H., Ma, N., 2021. Mitigation of residual stress and deformation induced by TIG welding in thin-walled pipes through external constraint, Journal of Materials Research and Technology, Vol.15, 4636-4651, DOI: 10.1016/j.jmrt.2021.10.035. Priya, C., Rao, K.B., Anoop, M.B., Lakshmanan, N., Gopika, V., Kushwaha, H.S., Saraf, R.K., 2005. Probabilistic Failure Analysis of Austenitic Nuclear Pipelines against Stress Corrosion Cracking, Proc. Inst. Mech. Eng. Part C J. Mech. Eng. Sci., 219(7), pp. 607–624, DOI: 10.1243/095440605X31526. Rybicki, E. F, McGuire, P. A., The Effects of Induction Heating Conditions on Controlling Residual Stresses in Welded Pipes. Journal of Engineering Materials and Technolog, 1982, Vol. 104/267. DOI:10.1115/1.3225075. Schmidt, J., Pellkofer, D., Weiß, E., 1997. Alternative methods for postweld treatment of austenitic pipe welds to increase the operational safety of BWR plants121st MPA Seminar, 5–6 October, 1995.1, Nuclear Engineering and Design,74(3), pp.301-312.DOI:10.1016/S0029 5493(97)00123-4. Shimizu, A.,suku, Enomoto, K., Sakata, S., Sagawa, W., 1984. Residual stresses in girth butt welded pipes and treatments to modify these, International Journal of Pressure Vessels and Piping,16(4). DOI:10.1016/0308-0161(84)90020-6. Tanaka, S., Umemoto, T., Residual Stress Improvement by Means of Induction Heating, presented at Session 3 of the Seminar and Countermeasures for BWR Pipe Cracking, EPRI, Palo Alto, Calif., Jan. 22-24,1980. Todinov, M.T., 13 - Generic solutions for reducing the likelihood of overstress and wearout failures, Editor(s): M.T. Todinov, Risk-Based Reliability Analysis and Generic Principles for Risk Reduction, 2007, Pages 239-263, ISBN 9780080447285, DOI:10.1016/B978 008044728-5/50013-5.