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Comparison of Limit Load, Linear and Nonlinear FE Analyses of Stresses in a Large Nozzle-to-Shell Diameter Ratio Application

[+] Author Affiliations
Michael A. Porter

Dynamic Analysis, Lawrence, KS

Steven R. Massey, Dennis H. Martens

Black & Veatch Pritchard Corporation, Overland Park, KS

Paper No. PVP2004-2598, pp. 73-77; 5 pages
doi:10.1115/PVP2004-2598
From:
  • ASME/JSME 2004 Pressure Vessels and Piping Conference
  • Design and Analysis of Pressure Vessels, Heat Exchangers and Piping Components
  • San Diego, California, USA, July 25–29, 2004
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4672-5
  • Copyright © 2004 by ASME

abstract

The analyses address a nominal 62-inch diameter nozzle in a nominal 124-inch diameter shell with a reinforcement pad. The nozzle is in a channel of a heat exchanger. This results in stiffening of the shell (adjacent to the nozzle) by the tube sheet and the channel head. The results of a WRC 297 analysis, linear elastic analysis, limit load analysis and plastic analysis are compared. The finite element analyses were accomplished utilizing commercial software and typical modeling techniques. As there is significant variance in the results derived with the different methodologies, the authors discuss the comparison of the results.

Copyright © 2004 by ASME

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