This paper presents a critical comparison of the traditional strength criteria and the modern plastic flow criteria used in the structural design and integrity assessment of pressure vessels. This includes (1) a brief review of the traditional strength criteria used in the ASME Boiler and Pressure Vessel (B&PV) Code, (2) a discussion of the shortcomings of the traditional strength criteria when used to predict the burst pressure of pressure vessels, (3) an analysis of challenges, technical gaps, and basic needs to improve the traditional strength criteria, (4) a comparison of strength theories and plasticity theories for ductile materials, (5) an evaluation of available plastic flow criteria and their drawbacks in prediction of burst pressure of pressure vessels, (6) a description of a newly developed multiaxial yield criterion and its application to pressure vessels, and (7) a demonstration of experimental validation of the new plastic flow criterion when used to predict the burst pressure of thin-wall pressure vessels. Finally, recommendations are made for further study to improve the traditional strength design criteria and to facilitate utilization of the modern plastic flow criteria for pressure vessel design and analysis.
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August 2016
Research-Article
Strength Criteria Versus Plastic Flow Criteria Used in Pressure Vessel Design and Analysis1
Xian-Kui Zhu
Xian-Kui Zhu
EWI,
1250 Arthur E. Adams Drive,
Columbus, OH 43221
1250 Arthur E. Adams Drive,
Columbus, OH 43221
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Xian-Kui Zhu
EWI,
1250 Arthur E. Adams Drive,
Columbus, OH 43221
1250 Arthur E. Adams Drive,
Columbus, OH 43221
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received June 11, 2015; final manuscript received August 7, 2015; published online April 28, 2016. Assoc. Editor: Kunio Hasegawa.
J. Pressure Vessel Technol. Aug 2016, 138(4): 041402 (7 pages)
Published Online: April 28, 2016
Article history
Received:
June 11, 2015
Revised:
August 7, 2015
Citation
Zhu, X. (April 28, 2016). "Strength Criteria Versus Plastic Flow Criteria Used in Pressure Vessel Design and Analysis." ASME. J. Pressure Vessel Technol. August 2016; 138(4): 041402. https://doi.org/10.1115/1.4031284
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