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Validating FEA Simulations of Structural Collapse of a Complex Vessel Geometry

[+] Author Affiliations
J. Adin Mann, III, Brandon Yost, Gregory Westwater, Christopher R. Johnson, Brett Pollock

Emerson Process Management, Marshalltown, IA

Katharine Liu

Emerson Process Management, Wuqing, China

Paper No. PVP2016-63817, pp. V003T03A047; 8 pages
doi:10.1115/PVP2016-63817
From:
  • ASME 2016 Pressure Vessels and Piping Conference
  • Volume 3: Design and Analysis
  • Vancouver, British Columbia, Canada, July 17–21, 2016
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 978-0-7918-5039-8
  • Copyright © 2016 by ASME

abstract

Part 5 in Section VIII Division 2 of the ASME Boiler & Pressure Vessel Code provides methods for evaluating stresses in pressure vessel components using Finite Element Analysis (FEA). Both linear elastic and inelastic methods are provided. Validating the FEA simulations can be challenging because of testing procedures as well as variation between the test parts. Control valve bodies, which have a complex geometry, were tested to pressures far beyond the maximum allowable working pressure to evaluate behavior at structural collapse. The test bodies were scanned so that the true geometry was used in the FEA simulations. FEA simulations were used to perform a linear elastic evaluation and inelastic evaluations. The inelastic evaluation included various material models. The difference between a point by point comparison and outcome based validation are discussed.

Copyright © 2016 by ASME

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