Structural Integrity Assessment of Major Nuclear Components Using Probabilistic Fracture Mechanics

Abstract:

Article Preview

The integrity of major components in nuclear power plant should be maintained during operation. In order to maintain the integrity of these components, complicated assessment procedures are required including fracture mechanics analysis, etc. The integrity assessment of components has been performed by using conventional deterministic approaches whilst there are lots of uncertainties to carry out a rational evaluation. In this respect, probabilistic integrity assessment is considered as an alternative method for nuclear component evaluation. The objectives of this paper are to develop an integrity assessment system based on probabilistic fracture mechanics and to estimate the failure probability of major nuclear components containing a defect. The integrity assessment system consists of three evaluation modules which are first order reliability method, second order reliability method and crude Monte Carlo simulation method. The developed system has been applied to evaluate failure probabilities of nuclear structural components such as steam generator tube and piping. The evaluation results showed a promising applicability of the probabilistic integrity assessment system.

Info:

Periodical:

Key Engineering Materials (Volumes 306-308)

Edited by:

Ichsan Setya Putra and Djoko Suharto

Pages:

339-344

DOI:

10.4028/www.scientific.net/KEM.306-308.339

Citation:

S. M. Lee et al., "Structural Integrity Assessment of Major Nuclear Components Using Probabilistic Fracture Mechanics", Key Engineering Materials, Vols. 306-308, pp. 339-344, 2006

Online since:

March 2006

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.