Numerical study of secondary effects in flexibility analysis of an ell-shaped piping structure
Miles, John Henry Thomas
Brock, John E.
MetadataShow full item record
This thesis considers the influence of four secondary effects on the analysis of a simple elle-shaped piping structure when it is uniformly heated. The four effects are: (a) axial deformation, (b) shearing deformation, (c) beam-column effect, and (d) difference between arc and chord. They are usually neglected in a piping flexibility analysis. In a paper of several years ago, J. E. Brock developed a theory for this investigation but did not present any numerical results or conclusions. The present thesis reviews Brock's theory and corrects some errors in coefficients. It then describes a digital computer program for IBM System 360 which performs the corresponding caluclations. Finally, it draws the new and quite significant conclusion that conventional piping stress analysis, which neglects these secondary effects, can result in gross errors in evaluating stresses in piping configurations which are likely to be encountered in piping practice
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
Fink, George E. (1964);A digital computer program is presented capable of determining the in-and/or out-of-plane vibration frequencies of a single engine piping system. The analysis is made utilizing the method of transfer matrices, a discussion ...
Brock, John E. (1966-12);The author is Professor of Mechanical Engineering at the U. S. Naval Postgraduate School, Monterey, California, and formerly Director of Engineering Sciences of the Service Bureau Corporation, a subsidiary of IBM. His Ph.D. ...
Rauch, Charles F. (Monterey, California: Naval Postgraduate School, 1957., 1957);Until the advent of the high-speed computer, engineers have spent untold hours with monotonous and lengthy computations when they have attempted analytical solutions of piping flexibility for even moderately simple ...