0

Full Content is available to subscribers

Subscribe/Learn More  >

Combination Rules for External Volumetric Flaws in a Pressurised Cylinder Subject to External Bending

[+] Author Affiliations
B. Bezensek, L. Duguid

University of Glasgow, Glasgow, Scotland, UK

Paper No. PVP2008-61293, pp. 1033-1040; 8 pages
doi:10.1115/PVP2008-61293
From:
  • ASME 2008 Pressure Vessels and Piping Conference
  • Volume 6: Materials and Fabrication, Parts A and B
  • Chicago, Illinois, USA, July 27–31, 2008
  • Conference Sponsors: Pressure Vessels and Piping
  • ISBN: 978-0-7918-4829-6
  • Copyright © 2008 by ASME

abstract

The pressure-moment (p-M) diagram of Konosu [1, 2] provides an inexpensive method for evaluating fitness for service of internally pressurised cylinders containing volumetric flaws (local thin areas) subject to external bending moment. This work examines the use of the recommended flaw combination rules for volumetric flaws of the ASME Boiler and Pressure vessel code Section XI [3] and Ibaraki fitness-for-service code [4] with the pressure–moment method. Investigation is performed for a thin-wall vessel containing two external volumetric flaws with flaw depths ranging from 25 to 75 percent of the wall thickness under a range of internal pressures. Assessment based on the plastic initiation moments shows that the adjacent flaws are conservatively assessed as single flaws using the above codes’ rules when flaw depths of both flaws do not exceed 60 percent of the wall thickness. This restriction is relaxed to 75 percent of the wall thickness when assessment is performed using the twice elastic slope (TES) collapse moments.

Copyright © 2008 by ASME
Topics: Cylinders

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In