To save material, the safety factor of pressure vessel design standards is gradually decreased from 5.0 to 2.4 in ASME Boiler and Pressure Vessel Codes. So the design methods of pressure vessel should be more rationalized. Considering effects of material strain hardening and non-linear structural deformation, the elastic-plastic stress analysis is the most suitable for pressure vessels design at present. This paper is based on elastic-plastic theory and considers material strain hardening and structural deformation effects. Elastic-plastic stress analyses of pressure vessels are summarized. Firstly, expressions of load and structural deformation relationship were introduced for thin-walled cylindrical and spherical vessels under internal pressure. Secondly, the plastic instability for thin-walled cylindrical and spherical vessels under internal pressure were analysed. Thirdly, to prevent pressure vessels from local failure, the ductile fracture strain of materials was discussed.
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ASME 2012 Pressure Vessels and Piping Conference
July 15–19, 2012
Toronto, Ontario, Canada
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-5500-3
PROCEEDINGS PAPER
Elastic-Plastic Stress Analysis of Pressure Vessels
Yang-chun Deng,
Yang-chun Deng
Hubei Special Equipment Safety Inspection and Research Institute, Wuhan, Hubei, China
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Gang Chen
Gang Chen
Standardization Administration of P.R. China, Beijing, China
Search for other works by this author on:
Yang-chun Deng
Hubei Special Equipment Safety Inspection and Research Institute, Wuhan, Hubei, China
Gang Chen
Standardization Administration of P.R. China, Beijing, China
Paper No:
PVP2012-78138, pp. 481-487; 7 pages
Published Online:
August 8, 2013
Citation
Deng, Y, & Chen, G. "Elastic-Plastic Stress Analysis of Pressure Vessels." Proceedings of the ASME 2012 Pressure Vessels and Piping Conference. Volume 1: Codes and Standards. Toronto, Ontario, Canada. July 15–19, 2012. pp. 481-487. ASME. https://doi.org/10.1115/PVP2012-78138
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