skip to main content

SciTech ConnectSciTech Connect

Title: A study on pseudo interface wave technique for CRDM weld defects in nuclear power plants

The nuclear power plant inspection is very important for the safety issue. However due to some radiation and geometric problems, the detection of CRDM(Control Rod Drive Mechanism) can be very difficult by using conventional Ultrasonic Testing method. Also the shrink fit boundary condition can also be an obstacle for the inspection in this paper, instead of conventional Ultrasonic Testing, guided wave was used for the detection of some complicated structures. The CRDM nozzle was installed in reactor head with perfect shrink fit condition by using stainless steel. The wave amplitude distribution on the circumferential direction was calculated with various boundary conditions and the experimental result shows a possibility of the defect detection on J-groove weld.
Authors:
;  [1] ;  [2] ; ; ;  [3]
  1. Graduate school, School of Mechanical Engineering, Pusan National University, Pusan (Korea, Republic of)
  2. School of Mechanical Engineering, Pusan National University, Pusan (Korea, Republic of)
  3. Korea Atomic Energy Research Institute, Daejeon (Korea, Republic of)
Publication Date:
OSTI Identifier:
22391208
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1650; Journal Issue: 1; Conference: 41. Annual Review of Progress in Quantitative Nondestructive Evaluation, Boise, ID (United States), 20-25 Jul 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BOUNDARY CONDITIONS; CONTROL ROD DRIVES; DETECTION; INTERFACES; NUCLEAR POWER PLANTS; POWER REACTORS; REACTOR MATERIALS; STAINLESS STEELS; ULTRASONIC TESTING; WELDED JOINTS