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http://dx.doi.org/10.3795/KSME-A.2015.39.7.645

Determination Method of Ramberg-Osgood Constants for Leak Before Break Evaluation  

Bae, Kyung Dong (Dept. of Mechanical Engineering, Korea Univ.)
Ryu, Ho Wan (Dept. of Mechanical Engineering, Korea Univ.)
Kim, Yun Jae (Dept. of Mechanical Engineering, Korea Univ.)
Kim, Jin Weon (Dept. of Nuclear Engineering, Chosun Univ.)
Kim, Jong Sung (Dept. of Mechanical and Aerospace Engineering, Sunchon Nat'l Univ.)
Oh, Young Jin (KEPCO Engineering & Construction Co. Inc.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.39, no.7, 2015 , pp. 645-652 More about this Journal
Abstract
In this study, a method for determining Ramberg-Osgood constants for leak-before-break evaluation was investigated. The Ramberg-Osgood constants were calculated for SA312, TP316, and SA-508 Gr.1a in an operating temperature of $316^{\circ}C$. Incremental plasticity, using stress-strain data obtained from experiment, and deformation plasticity, using the Ramberg-Osgood constants, were considered in a finite element analysis. Using incremental plasticity and deformation plasticity, J-integrals and crack opening displacement values were calculated and compared. By comparing the results of incremental plasticity and deformation plasticity, a suitable method for determining Ramberg-Osgood constants for leak-before-break evaluation was confirmed.
Keywords
Leak Before Break Assessment; J-integral; Crack Opening Displacement; Ramberg-Osgood Equation; Circumferential Through-wall Crack; Incremental Plasticity; Deformation Plasticity;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 Huh, N.S., Park, Y.J., Kim, Y.J. and Kim, Y.J., 2003, "New Engineering J and COD Estimation Methods for Axial Through-Wall Cracked Pipes," Trans. Korean Soc. Mech. Eng. A, Vol. 27, No. 2, pp. 239-246   DOI   ScienceOn
2 Huh, N.S., Kim, Y.J. and Kim, Y.J., 2001, "Application of Enhanced Reference Stress Method to Nuclear Piping LBB Analysis: Finite Element Validation," Trans. Korean Soc. Mech. Eng. A, Vol. 25, No. 4, pp. 741-747   DOI
3 Dassault Systemes, 2013, ABAQUS User's manual, version 6.13
4 KEPCO E&C, 2013, "Evaluation of Material Performance and Analysis of Regulation Requirement for Application of Induction Vending Pipe to Nuclear Piping Components"
5 Kim, J.W., Choi, M.L., Lee M.Y., Nam H.S. and Kim Y. J., 2014, "Effect of Strain Rate on the Deformation and Failure Behaviors of SA508 Gr.1a Low-alloy Steel Piping Material," Trans. Korean Soc. Mech. Spring Conference, 53-54
6 Norris, D.M. and Chexal, B., 1987, "PICEP: Pipe Crack Evaluation Program, Rev.1," Electric Power Research Institute, NP-3596-SR, Rev.1
7 Kim, Y.J., Huh, N.S. Kim, Y.J., Choi, Y.H. and Yang, J.S., 2003, "On Relevant Ramberg-Osgood Fit to Engineering Non-Linear Fracture Mechanics Analysis" Trans. Korean Soc. Mech. Spring Conference, 170-177
8 British Energy Generation Ltd., 2009, "R6: Assessment of the Integrity of Structures Containing Defects.", Rev. 4
9 Kirk M.T. and Dodds R.H. Jr., 1993, "J and CTOD Estimation Equations for Shallow Cracks in Single Edge Notch Bend Specimens," Journal of Testing and Evaluation, Vol. 21, No. 4, pp.228-238   DOI   ScienceOn
10 Kim, Y.J., 1998, "Note on Y/T vs. n for SINTAP Procedure: Continuous and Dis-continuous Hardening," Structural Integrity Assessment Procedures for European Industry-SINTAP.