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http://dx.doi.org/10.5762/KAIS.2013.14.7.3121

Analysis for Defect Evaluation of Pipes in Nuclear Power Plant  

Lee, Joon-Seong (Dept. of Mechanical System Engineering, Kyonggi University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.14, no.7, 2013 , pp. 3121-3126 More about this Journal
Abstract
The integrity evaluation of pipes in nuclear power plant are essential for the safety of reactor vessel, and integrity must be assured when flaws are found. Accurate stress intensity analyses and crack growth rate data of surface-cracked components are needed for reliable prediction of their fatigue life and fracture strengths. Fatigue design and life assessment are the essential technologies to design the structures such as pipe, industrial plant equipment and so on. The effect of crack spacing on stress intensity factor K values was studied using three-dimensional finite element method (FEM). For the case of cylinder under internal pressure, a significant increase in K values observed at the deepest point of the surface crack. Also, this paper describes the fatigue analysis for cracked structures submitted to bending loads.
Keywords
Fatigue Analysis; Finite Element Analysis; Integrity Evaluation; Stress Intensity Factor;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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