Search

Occasional Topics
OTjapan Measures for Tsunami Striking Nuclear Power Station in Japan
Special Article: The Great Tohoku Earthquake (1)
OTjapan The Tragedy of “To Be” Principle in the Japanese Nuclear Industry
EJAMOT_CN3_Figure1_The_outside_view_of_CEFR OTChinaPlanning and Consideration on SFR R&D Activities in China
< All Occasional Topics

Information
ICMST-Kobe 2014
Nov 2(Sun) - 5(Wed), 2014
Kobe, Japan
Nuclear Regulation Authority Outline of the New Safety Standards for Light Water Reactors for Electric Power Generation
For Public Comment
Outline of New Safety Standard (Design Basis)
For Public Comment
New Safety Standards (SA) Outline (Draft)
For Public Comment
Outline of New Safety Standard(Earthquake and Tsunami)(DRAFT)
Issues
  Vol.5 No.4(Feb-25)
Vol.5 No.3(Nov-25)
Vol.5 No.2(Aug-26)
Vol.5 No.1(May-27)
< Other Issues

Featured Articles
EJAM5-3NT58 "Development of Future Prediction of Animation by coupling of Principle Component Analysis and Singular Spectrum Analysis"
EJAM5-3NT58 Validation of Multifrequency and Window-Multifrequency Techniques using Remote Field Eddy Currents for ISI of FBR Tubes
EJAM5-3NT59 Remote Controlled Robot with expandable features

JSM
Contacts
(EJAM): ejam@jsm.or.jp
(JSM): secretariat@jsm.or.jp
HP: http://www.jsm.or.jp
(in English)

 

Vol.5 No.1 previous AA SP9 (59-60-61-62-63-64-65-66)-67-NT 56 -57

Academic Articles
Regular Paper Vol.5No.2 (2013) p.113 - p.120
 

On the Efficiency of Direct Sparse Solver for FEM-ECT Analysis

 
Shigeru HEMMI 1,*, Masayuki SARUHASHI1and Yasushi IKEGAMI1
 
1Itochu Techno-Solutions Corporation, Kasumigaseki Bldg, 3-2-5 Kasumigaseki, Chiyoda-ku, Tokyo 100-6080, Japan
 
Abstract
In the analysis of time harmonic eddy current testing (ECT) by FEM, in which non-cored exciter/detector coils are moved above the surface of metal object, the use of direct sparse solver has been studied. And it is found practically efficient because the factorized numerical matrix can be reused repeatedly in the calculation. The validity of this method is discussed and a satisfactory result for an ECT model is shown.
 
Keywords
Eddy Current Testing, ECT, Finite Element Methods, FEM, Direct Sparse Solver, MUMPS, Edge Element, Coulomb Gauge
 
Full Paper: PDF EJAM Vol.5No.2 pp.113-120 "On the Efficiency of Direct Sparse Solver for FEM-ECT Analysis "
















Article Information
Article history:
Received 9 November 2012
Accepted 10 June 2013