The ASME Code Secs. III and VIII (Division 2) provide stress-classification guidelines to interpret the results of a linear elastic finite element analysis. These guidelines enable the splitting of the generated stresses into primary, secondary, and peak. The code gives some examples to explain the suggested procedures. Although these examples may reflect a wide range of applications in the field of pressure vessel and piping, the guidelines are difficult to use with complex geometries. In this paper, the -node method is used to investigate the primary stresses and their locations in both simple and complex geometries. The method is verified using the plane beam and axisymmetric torispherical head. Also, the method is applied to analyze 3D straight and oblique nozzles modeled using both solid and shell elements. The results of the analysis of the oblique nozzle are compared with recently published experimental data.
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November 2007
Research Papers
Stress Classification Using the -Node Method
Ihab F. Z. Fanous,
Ihab F. Z. Fanous
Atomic Energy of Canada Ltd.
, 2251 Speakman Drive, Mississauga, ON-L5K 1B2, Canada
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R. Seshadri
R. Seshadri
Faculty of Engineering & Applied Science,
Memorial University of Newfoundland
, St. John’s, Newfoundland A1B 3X5, Canada
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Ihab F. Z. Fanous
Atomic Energy of Canada Ltd.
, 2251 Speakman Drive, Mississauga, ON-L5K 1B2, Canada
R. Seshadri
Faculty of Engineering & Applied Science,
Memorial University of Newfoundland
, St. John’s, Newfoundland A1B 3X5, CanadaJ. Pressure Vessel Technol. Nov 2007, 129(4): 676-682 (7 pages)
Published Online: June 28, 2006
Article history
Received:
March 4, 2006
Revised:
June 28, 2006
Citation
Fanous, I. F. Z., and Seshadri, R. (June 28, 2006). "Stress Classification Using the -Node Method." ASME. J. Pressure Vessel Technol. November 2007; 129(4): 676–682. https://doi.org/10.1115/1.2767357
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