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Dynamic Burst Pressure Simulation of Cylinder-Cylinder Intersections

[+] Author Affiliations
Cunjiang Cheng

Bjorksten Research Lab., Madison, WI

G. E. Otto Widera

Marquette University, Milwaukee, WI

Paper No. PVP2008-61855, pp. 169-178; 10 pages
doi:10.1115/PVP2008-61855
From:
  • ASME 2008 Pressure Vessels and Piping Conference
  • Volume 3: Design and Analysis
  • Chicago, Illinois, USA, July 27–31, 2008
  • Conference Sponsors: Pressure Vessels and Piping
  • ISBN: 978-0-7918-4826-5 | eISBN: 0-7918-3828-5
  • Copyright © 2008 by ASME

abstract

In this study, the determination of the burst pressure of a series of cylinder-cylinder intersections representing vessels of diameter D and wall thickness T, and nozzles of diameter d and wall thickness t subjected to short-term dynamic loading is investigated. Dynamic simulations via the use of the finite element method are carried out to determine the effects of dimensionless parameters d/D, D/T and t/T as well as pressure vs. time history. The LS-DYNA software is employed to model and analyze various intersections for the geometric parameter ranges 0.1 ≤ d/D < 1.0, 0.1 ≤ t/T ≤ 3 and 50 ≤ D/T ≤ 250. The use of both solid and shell elements is investigated and applied in this study. A correlation equation to predict the dynamic burst pressure of cylinder-cylinder intersections is proposed based on the parametric finite element analyses. Static test data is used to verify the dynamic correlation equation by applying a relatively long pressure pulse duration.

Copyright © 2008 by ASME

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