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Analytical and Numerical Evaluation of the Cyclic Yield Area Criteria for Shakedown Requirements

[+] Author Affiliations
Isoharu Nishiguchi

Kanagawa Institute of Technology, Atsugi, Japan

Asao Okamoto

IHI Co. Ltd., Yokohama, Japan

Norimichi Yamashita, Mitsuru Aoki

Tokyo Electric Power Company, Tokyo, Japan

Paper No. PVP2002-1220, pp. 39-46; 8 pages
doi:10.1115/PVP2002-1220
From:
  • ASME 2002 Pressure Vessels and Piping Conference
  • Pressure Vessel and Piping Codes and Standards
  • Vancouver, BC, Canada, August 5–9, 2002
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4650-4
  • Copyright © 2002 by ASME

abstract

The rules in codes such as the ASME Boiler and Pressure Vessel Code Section III Division 1 and Section VIII Division 2, provide the concept of stress categorization to prevent inelastic failure modes based on the elastic analyses. The categorization of the stresses obtained by the FEM analysis, however, is not always clear and the Three Dimensional FEM Stress Evaluation in JPVRC (TDF committee) has been developed alternative criteria to dispense with the stress categorization. As for the evaluation of the primary plus secondary stress, criteria based on the concept of the Cyclic Yield Area (CYA) have been developed. In this paper, the recent results obtained in the committee are summarized to evaluate the validity and the usability of the criteria.

Copyright © 2002 by ASME

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