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Vol.3 No.2 previous GA 18 - AA 36 - NT 39 - 40

Academic Articles
Regular Paper Vol.3No.3 (2011) p.92 - p.101
 

Simulation and visualization of guided wave propagation by large-scale 3D FEM

 
Takashi FURUKAWA*and Ichiro KOMURA
 
Japan Power Engineering and Inspection Corporation, 14-1 Bentencho, Tsurumi-ku, Yokohama 230-0044, Japan
 
Abstract
Ultrasonic guided waves have been widely applied to the long-range inspection of straight piping. The interpretation of the guided wave ultrasonic testing data beyond welds and elbows is challenging because there are many wave modes with different sound velocity. One of the key techniques to examine the beam path of each guided wave mode is the visualization of ultrasonic wave propagation. The authors have employed a large-scale FEM code for bulk wave propagation to the interpretation of UT data, analysis of suitable UT condition and training of UT. This paper describes the simulation and visualization of guided wave propagation in pipes and beyond elbows and welds via a large-scale 3D pure FEM code, which has over one billion elements and parallel computing system. This study presents the comparisons between the simulated and experimental results.
 
Keywords
Ultrasonic guided wave, Wave propagation, FEM, Piping, Elbow, Welds
 
Full Paper: PDF EJAM Vol.3No. 2 pp.92-101 "Simulation and visualization of guided wave propagation by large-scale 3D FEM
Article Information
Article history:
Received 13 May 2011
Accepted 25 November 2011