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Creep Life Prediction of 0.5%Cr-0.5%Mo-0.25%V Thick-Walled Cylinder Using New Multiaxial Approach

[+] Author Affiliations
Lawrence Ng, Zarrabi Khosrow

University of New South Wales

Paper No. IMECE2005-82450, pp. 155-160; 6 pages
doi:10.1115/IMECE2005-82450
From:
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Recent Advances in Solids and Structures
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4228-2 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME

abstract

A new method is proposed to predict the life of pressure components operating within the creep range. The method is based on exhaustion of the internal energy in the critical zones of the material. It is shown that the proposed method alleviates some of the major shortcomings of the existing methods yet it is simple enough to be readily applicable to industrial cases. Its predictions compared with a set of experimental data shows that the proposed approach may be used to predict the creep life with an accuracy of better than 2%.

Copyright © 2005 by ASME
Topics: Creep , Cylinders

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