When the primary plus secondary stress range exceeds 3 Sm, the current ASME Code rules on simplified elastic-plastic analysis impose two separate requirements to evaluate the potential for ratcheting. The range of primary plus secondary stress excluding thermal bending must be less than 3 Sm, and the thermal stress must satisfy the Bree criterion for thermal stress ratchet. It has been shown previously that this method can be unconservative, i.e. predict shakedown when elastic-plastic analysis shows ratcheting. This paper clarifies the interaction between thermal membrane and bending stress in the presence of a primary membrane stress. An analytical model is used to derive the closed-form ratchet boundary for combined uniform loading of this type. The impact of having stress gradients along the wall that are typical for discontinuities is studied numerically. Simple modifications of the current Code methods are suggested that would achieve a clearer and better-justified set of rules.
Skip Nav Destination
ASME 2008 Pressure Vessels and Piping Conference
July 27–31, 2008
Chicago, Illinois, USA
Conference Sponsors:
- Pressure Vessels and Piping
ISBN:
978-0-7918-4824-1
PROCEEDINGS PAPER
On the Interaction of Thermal Membrane and Thermal Bending Stress in Shakedown Analysis Available to Purchase
Wolf Reinhardt
Wolf Reinhardt
Atomic Energy of Canada Limited, Mississauga, ON, Canada
Search for other works by this author on:
Wolf Reinhardt
Atomic Energy of Canada Limited, Mississauga, ON, Canada
Paper No:
PVP2008-61628, pp. 811-822; 12 pages
Published Online:
July 24, 2009
Citation
Reinhardt, W. "On the Interaction of Thermal Membrane and Thermal Bending Stress in Shakedown Analysis." Proceedings of the ASME 2008 Pressure Vessels and Piping Conference. Volume 1: Codes and Standards. Chicago, Illinois, USA. July 27–31, 2008. pp. 811-822. ASME. https://doi.org/10.1115/PVP2008-61628
Download citation file:
43
Views
Related Proceedings Papers
Related Articles
The ASME Code and 3D Stress Evaluation
J. Pressure Vessel Technol (November,1991)
A Procedure for Verifying the Structural Integrity of an Existing Pressurized Wind Tunnel
J. Eng. Mater. Technol (October,1974)
A Study of Effects of Pipe Geometry on FAD Curves for Austenitic Stainless Steel and Ferritic Steel Piping Materials
J. Pressure Vessel Technol (February,1998)
Related Chapters
Openings
Guidebook for the Design of ASME Section VIII Pressure Vessels, Third Edition
Openings
Guidebook for the Design of ASME Section VIII Pressure Vessels
Analysis of Components in VIII-2
Guidebook for the Design of ASME Section VIII Pressure Vessels, Third Edition