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Stress Intensity Factor Error Index for Finite Element Analysis With Non-Singular Elements

[+] Author Affiliations
Toshiyuki Meshii, Kyohei Kageyama

University of Fukui, Fukui, Japan

Paper No. PVP2006-ICPVT-11-93365, pp. 515-519; 5 pages
  • ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference
  • Volume 3: Design and Analysis
  • Vancouver, BC, Canada, July 23–27, 2006
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4754-3 | eISBN: 0-7918-3782-3
  • Copyright © 2006 by ASME


In this paper, it is shown that Meshii et al.’s stress intensity factor (SIF) error index called the DCE index [1], that was developed for a finite element analysis (FEA) with singular elements, can be also applied to FEA with non-singular elements. The DCE index has a dimension of a SIF and, thus, has an advantage to the conventional error indexes (e.g., Zienkiewicz and Zhu’s) on the point that it does not require mesh refinement iteration process to obtain an accurate SIF solution. Then the validity of the DCE index for non-singular crack tip elements was shown for elastic crack problems, whose analytical SIF solutions are known.

Copyright © 2006 by ASME



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