Statistical Assessment of Integrity in Steam Generator Tubes Considering Uncertainty of NDE

Jae Bong Lee; Jai Hak Park; Hong Deok Kim; Han Sub Chung; Tae Ryong Kim

doi:10.4028/www.scientific.net/KEM.326-328.545

Paper Titles

Effects of Packaging Induced Stress on MEMS Devices and Its Improvements
p.529

A Novel Prediction Technique for Interfacial Crack Growth of Electronic Interconnect
p.533

Experiment Study and Finite Element Analysis of Spring Constant of Welded Metal Bellows
p.537

Thermal Deformation Analysis of Exhaust Manifold for Turbo Diesel Engine
p.541

Statistical Assessment of Integrity in Steam Generator Tubes Considering Uncertainty of NDE
p.545

Reliability and Lifetime of Mechanical Units in Operation and Test
p.549

On Statistical Properties of High Temperature Creep Rupture Data in STS304 Stainless Steels
p.553

Research on 3D Geomechanics Model Test for a Large-Scale Offspur Tunnel Project
p.557

Coupled THM Processes Modeling and Stochastic Simulation Considering Spatial Variability of Hydraulic Conductivity in Underground Storage Caverns
p.561

HomeKey Engineering MaterialsKey Engineering Materials Vols. 326-328Statistical Assessment of Integrity in Steam...

Statistical Assessment of Integrity in Steam Generator Tubes Considering Uncertainty of NDE

Abstract:

A statistical assessment model for structural integrity of steam generator tubes with axial cracks at the top of the tubesheet was proposed using Monte Carlo method. In the model, a method for estimating the number of "real cracks" from in-situ inspection (ISI) data was used. Based on the estimated "real cracks", the number of newly detected cracks and growth of cracks during arbitrary operating period were simulated using the Monte Carlo method. The flaw growth rate used in the simulation was statistically calculated from the periodic in-service non-destructive inspection data. The number of cracks, the probabilistic distribution of crack sizes at the end of next operating interval and the probability of burst during operation were calculated from numerously repeated simulations using the proposed model.

You might also be interested in these eBooks

Experimental Mechanics in Nano and Biotechnology

View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 326-328)

Pages:

545-548

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.326-328.545

Citation:

Cite this paper

Online since:

December 2006

Authors:

Jae Bong Lee, Jai Hak Park, Hong Deok Kim, Han Sub Chung, Tae Ryong Kim

Keywords:

Probability of Detection, Statistical Integrity Assessment, Steam Generator Tube, Uncertainty of NDE

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Steam Generator Integrity Assessment Guidelines: Revision 1, EPRI, Palo Alto, CA: 2000. TR107621-R1.

Google Scholar

[2] Steam Generator Degradation Specific Management Flaw Handbook, EPRI, Palo Alto, CA: 2001. 1001191.

Google Scholar

[3] Jae Bong Lee, Jai Hak Park, Sung Ho Lee, Hong-Deok Kim and Han-Sub Chung: Statistical Estimation of Crack Growth Behaviors in Steam Generator Tubes Using Monte Carlo Method, Proceedings of 18 th International Conference on Structural Mechanics in Reactor Technology, 2005, pp.3855-3866.

Google Scholar

[4] Jae Bong Lee, Jai Hak Park, Sung Ho Lee, Hong-Deok Kim and Han-Sub Chung: Estimation of the Number of Physical Flaws from Periodic ISI Data of SG Tubes Using Effective POD, Solid State Phenomena, Vol. 110 (2006), pp.239-248.

DOI: 10.4028/www.scientific.net/ssp.110.239

Google Scholar

[5] Mendenhall, W., Beaver, R.J., and Beaver, B.M.: Probability and Statistics, 11th ed. (2003), Thomson.

Google Scholar

[6] Berens, A.P.: NDE reliability data analysis, Metals Handbook, 9th ed., Vol. 17 (1989), pp.689-701.

Google Scholar

[7] PWR Steam Generator Tube Repair Limit : Technical Surpport Document for Expansion Zone PWSCC in Roll Transitions (Revision 1) , EPRI, Palo Alto, 1991, NP-6864-L.

Google Scholar