Effect of Internal Pressure on Flexibility Factors in Pipe Elbows With End Constraints

[+] Author and Article Information
R. Natarajan

Department of Mechanical Engineering, University of Illinois, Chicago, Ill. 60680

S. Mirza

Department of Mechanical Engineering, University of Ottawa, Ottawa, Ontario, Canada

J. Pressure Vessel Technol 107(1), 60-63 (Feb 01, 1985) (4 pages) doi:10.1115/1.3264406 History: Received April 16, 1984; Revised October 30, 1984; Online November 05, 2009


Finite element method has been used in the present work to study the stress distribution in an elbow with end constraints subjected to in-plane moment and pressure. Elbows of short radius (R/r ) with varying pipe factors and bend angles have been considered. Present numerical results show for all elbow angles that follower pipe factors (thin pipes) the internal pressure reduces the flexibility factor by a larger amount than for elbows having larger pipe factors. These results are in line with the conclusions published earlier.

Copyright © 1985 by ASME
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