Abstract
A study on the progressive inelastic deformation behavior of the 316 L stainless steel cylindrical structure with plate-to-shell junction under moving temperature front was carried out by structural test and analysis. The structural test intends to simulate the thermal ratcheting behavior occurring at the reactor baffle of the liquid metal reactor as free surface of hot sodium pool moves up and down under plant transients. The thermal ratchet load that heats the specimen up to 550°C was applied repeatedly and residual deformation was measured. The thermal ratcheting test was carried out with two types of cylindrical structures, one with plate-to-shell junction and the other without the junction to investigate the effects of the geometric discontinuities on the global ratcheting deformation. The temperature distributions of the test specimens were measured and were used for the ratcheting analysis. The ratchet deformations were analyzed with the constitutive equation of the non-linear combined hardening model. The analysis results were in good agreement with those of the structural tests.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
ABAQUS version 6.2, Hibbit, Karlsson, Sorensen. April 12. 2001.
ASME Boiler and Pressure Vessel Code, 2001, Section III Rules for construction of nuclear power plant components, Subsection NH Class 1 components in elevated temperature service.
Chaboche, J-L, Rousselier, 1983, “On the Plastic and Viscoplastic Constitutive Equations -Part I: Rules Developed with Internal Variable Concept,”Journal of Pressure Vessel Technology, Vol. 105, No. 5, pp. 153.
IMSL Mathematics & Statistics Library, Vol. 2.
Igari. T., Wada, H., Ueta, M., 2000, “Mechanism-based Evaluation of Thermal Ratcheting due to Traveling Temperature Distribution,”Journal of Pressure Vessel Technology, Vol. 122, No. 2, pp. 130–138.
Igari, T., et al, 2002, “Inelastic Analysis of New Thermal Ratchetting due to a Moving Temperature Front,”International Journal of plasticity, Vol. 18., pp. 1191–1217.
Kobayashi, K. and Ohno, N., 1996, “Thermal Ratcheting of a Cylinder Subjected to a Moving Temperature Front: Effect of Kinematic Hardening Rules on the Analysis,“International Journal of Plasticity, Vol. 12, No. 2, pp. 255- 271.
Koo, G. H. and Lee, J. H., 2002, “Design of LMR Reactor Structure in the Vicinity of Hot Pool Free Surface Regions Subjecting Elevated Moving Temperature Cycles,”International Journal of Pressure Vessel and piping, Vol. 79, pp. 167–179.
Lee, H. Y., Kim, J. B. and Lee, J. H, 2002, “Test and Analysis of Thermal Ratchetting Deformation for 316L Stainless Steel Cylindrical Structure,”Korean Society of Mechanical Engineers (KSME), Vol. 26. No. 3, pp. 479–486. (in Korea)
Lemaitre, J., Chaboche, J-L., 1990,Mechanics of Solid Materials, Cambridge university press.
R5, 1998,An assessment procedure for the high temperature response of structures, Nuclear Electric., Issue 2 Revision 2, UK.
RCC-MR Code, 1993, Section I. Subsection RB-3000, AFCEN, 1985 edition & 1993 addenda.
Schwertel, I. and Schinke, B., 1996, “Automated Evaluation of Material Parameters of Viscoplastic Constitutive Equations,”J. Eng Mat. Tech., Vol. 118, pp.273.
Wada. H., Otani, T., Fujioka, T., 1997, “The Ratcheting Evaluation Methods in Japanese Demonstration FBR Design,”SMIRT 14, F04/2, pp. 85–92.
Wolters, J., Breitbach, G., Rodig, H. and Nickel, H., 1997, “ Investigation of Ratcheting Phenomenon for Dominating Bending Loads,”Nuclear Engineering Design, Vol. 174. No. 3, pp.353–363.
Yoon, S. S., Lee, S. B., Kim, J. B., Lee, H. Y. and Yoo, B., 2000, “Generalization of Integration Methods for Complex Inelastic Constitutive Equations with State Variables,”KSME, Vol. 24, No. 5, pp. 1075–1083. (in Korea)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Lee, H.Y., Kim, J.B. & Lee, JH. Progressive inelastic deformation characteristics of cylindrical structure with plate-to-shell junction under moving temperature front. KSME International Journal 17, 400–408 (2003). https://doi.org/10.1007/BF02984366
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF02984366