Analysis of Piping With Flexible Joints

[+] Author and Article Information
N. C. Lind, P. K. Fung

Solid Mechanics Division, University of Waterloo, Waterloo, Ontario, Canada

J. Eng. Ind 94(3), 920-924 (Aug 01, 1972) (5 pages) doi:10.1115/1.3428271 History: Received July 06, 1971; Online July 15, 2010


A method is described for the analysis of structural systems containing flexible joints. The formalism of mechanical systems theory is employed to show that there always exists at least one rigid-jointed system equivalent to a system with flexible joints. In practice, the flexibility components of a joint are obtained experimentally; the prerequisite transformations are described. The analysis is illustrated by an example, showing that joint flexibility may be a significant factor in the stress analysis of a piping network. It is also shown that the equivalent rigid-jointed system cannot be given a physical representation. Finally, the best physically realizable approximation is given for a tee or a wye joint.

Copyright © 1972 by ASME
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