The ASME Code Section III and Section 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 r-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 nozzle 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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ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference
July 23–27, 2006
Vancouver, BC, Canada
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
0-7918-4756-X
PROCEEDINGS PAPER
Stress Classification Using the R-Node Method
Ihab F. Z. Fanous,
Ihab F. Z. Fanous
Memorial University of Newfoundland, St. John’s, NL, Canada
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R. Seshadri
R. Seshadri
Memorial University of Newfoundland, St. John’s, NL, Canada
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Ihab F. Z. Fanous
Memorial University of Newfoundland, St. John’s, NL, Canada
R. Seshadri
Memorial University of Newfoundland, St. John’s, NL, Canada
Paper No:
PVP2006-ICPVT-11-93045, pp. 315-322; 8 pages
Published Online:
July 23, 2008
Citation
Fanous, IFZ, & Seshadri, R. "Stress Classification Using the R-Node Method." Proceedings of the ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. Volume 5: High Pressure Technology, Nondestructive Evaluation, Pipeline Systems, Student Paper Competition. Vancouver, BC, Canada. July 23–27, 2006. pp. 315-322. ASME. https://doi.org/10.1115/PVP2006-ICPVT-11-93045
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