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Plastic Collapse Analysis of Pipe Bends Under Out-of-Plane Moment and Internal Pressure Loading

[+] Author Affiliations
Hongjun Li, Donald Mackenzie

University of Strathclyde, Glasgow, UK

Paper No. PVP2006-ICPVT-11-93098, pp. 691-699; 9 pages
doi:10.1115/PVP2006-ICPVT-11-93098
From:
  • 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

abstract

Two recently proposed Design by Analysis criteria of plastic collapse based on plastic work concepts, the Plastic Work criterion and the Plastic Work Curvature criterion, are applied to a strain hardening pipe bend arrangement subject to combined pressure and out-of-plane plane moment loading. Calculated plastic pressure-moment interaction surfaces are compared with limit surfaces, large deformation analysis instability surfaces and plastic load surfaces given by the ASME Twice Elastic Slope criterion. The results show that both large deformation theory and material strain hardening have a significant effect on the elastic-plastic response and calculated static strength of the component.

Copyright © 2006 by ASME

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