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Evaluation of Creep Crack Growth Failure Probability for High Temperature Pressurized Components Using Monte Carlo Simulation  

Lee, Jin-Sang (Graduate School of Chung-Ang University)
Yoon, Kee-Bong (Division of Mechanical Engineering, Chung-Ang University)
Publication Information
Journal of the Korean Society of Safety / v.21, no.1, 2006 , pp. 28-34 More about this Journal
Abstract
A procedure of estimating failure probability is demonstrated for a pressurized pipe of CrMo steel used at $538^{\circ}C$. Probabilistic fracture mechanics were employed considering variations of pressure loading, material properties and geometry. Probability density functions of major material variables were determined by statistical analyses of implemented data obtained by previous experiments. Distributions of the major variables were reflected in Monte Carlo simulation and failure probability as a function of operating time was determined. The creep crack growth life assessed by conventional deterministic approach was shown to be conservative compared with those obtained by probabilistic one. Sensitivity analysis for each input variable was also conducted to understand the most influencing variables to the residual life analysis. Internal pressure, creep crack growth coefficient and creep coefficient were more sensitive to failure probability than other variables.
Keywords
creep crack growth(CCG); PFM(probabilistic fracture mechanics); Monte Carlo simulation; residual life prediction; high temperature;
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1 J. L. Bassani, D. E. Hawk and A. Saxena, 'Evaluation of the Ct Parameter for Characterizing Creep Crack Growth Rate in The Transient Regime', ASTM STP 995, pp. 7-26, 1986
2 K. B. Yoon, A. Saxena and P. K. Liaw, 'Characterization of creep fatigue crack growth behavior under trapezoidal waveshape using Ct-parameter', International Journal of Fracture, Vol. 59, pp. 95-114, 1993   DOI
3 D.O. Harris, 'A Probabilistic Fracture Mechanics Computer Code for Piping Reliability Analysis', Research report, NUREG/CR-5864, 1992
4 K. B. Yoon, K. Y. Kim, 'High temperature fracture parameter for a weld interface crack', Theoretical and applied fracture mechanics, Vol. 32, pp. 27-35, 1999   DOI   ScienceOn
5 K. B. Yoon, J. S. Lee, 'Evaluation of Ct-parameter for Weld Interface Crack Considering Material Plastic Behavior', Transactions of the Korean Society of Mechanical Engineers, Vol. 24 No. 3, pp. 676-684, 2000   과학기술학회마을
6 A. Saxena, J. Han, K. Banerji, 'Creep crack growth behavior in power plant boiler and steam pipe steels', Journal of pressure Vessel Technology Transaction ASME, Vol. 110, pp. 137-146, 1998
7 A. Saxena, K. Yagi, M. Tabuchi, 'Crack growth under small scale and transition creep conditions in creep-ductile materials', ASTM STP 1207, pp. 381-497, 1994
8 Kee Bong Yoon, Tae Gyu Park, Ashok Saxena, 'Creep crack growth analysis of elliptic surface cracks in pressure vessels', International Journal of Pressure Vessels and Piping, Vol. 80, pp. 465-479, 2003   DOI   ScienceOn
9 M. Tabuchi, K. Kubo, K. Yagi, 'Effect of specimen size on creep crack growth rate using ultralarge CT specimens for 1Cr-Mo-V steel', Engineering fracture mechanics, Vol. 40, No. 2, pp. 311-321, 1991   DOI   ScienceOn
10 P. S. Grover, A. Saxena, 'Characterization of creep fatigue crack growth behavior in 2.25Cr-1Mo steel using(Ct)avg', International Journal of fracture, Vol. 73, pp. 273-286, 1995   DOI
11 A. Saxena, 'Creep fatigue crack growth in power plant materials and components', Adv Fracture Res, ICF9, Vol. 1, pp. 51-62, 1997
12 A. H. S. Ang and W. H. Tang, Probability Concepts in Engineering Planning and Design, John Willey & Sons, 1984
13 P. S. Grover, A. Saxena, 'Modeling the effects of creep fatigue interaction on crack growth', Fatigue and fracture of engineering materials and structures, Vol. 22, pp. 111-122, 1999   DOI   ScienceOn
14 R. H. Norris, A. Saxena, 'Creep crack growth behavior in chromium molybdenum steel weldments', Mater Ageing Component Life extension, I : 713-723, 1995
15 V. Kumar, M. D. German and C. F. Shih, 'An Engineering Approach for Elastic-Plastic Fracture Analysis', EPRI NP 1931, 1981
16 R. Viswanathan, 'Damage Mechanisms and Life Assessment of High-Temperature Components', ASM International, 1989
17 A. Saxena, 'Nonlinear Fracture Mechanics for Engineers', CRC Press, 1998
18 C. Sundararajan, 'Probabilistic Structural Mechanics Handbook', Champman & Hall, 1995