FLANGE-ORNL: Flanged Pipe Joint Stress Analysis, Internal Pressure, Moment Loads Temperature.
Oak Ridge National Laboratory, Oak Ridge, Tennessee through the Nuclear Energy Agency Data Bank, Issy-les-Moulineaux, France.
FORTRAN-IV; IBM 360 (P00566IO36000).
FLANGE-ORNL calculates appropriate loads, stresses, and displacements for the flanges, bolts, and gaskets that comprise a flanged piping joint for internal pressure or moment loading on the pipe, temperature difference between the flange hub and ring, and variations in bolt load that result from pressure, hub-ring temperature gradient and/or bolt-ring temperature differences. Flanges considered may be tapered-hub, straight or blind.
The solution is based on discontinuity analysis and the theory of plates and shells. FLANGE-ORNL has a unique set of user-controlled options which allow for calculating ASME boiler and pressure vessel code design criteria and/or more extensive stress analysis, and also for specifying various different flange design combinations for the joint. In addition, the program calculates values for various ASME code variables that would otherwise have to be extracted manually from curves and used as input.
In common with all shell-type analyses, the analysis gives anomalous results at points of abrupt thickness change or meridional direction change. In particular, the stresses at the juncture of the hub to the ring represent only the gross loading effect; detailed local stresses are not determined by the theory. Displacements should be represented fairly accurately.
Program compilation required 19.4 seconds CPU time. Total execution time for six sample flanged joints required 1.15 seconds. Note: FLANGE-ORNL was not tested at RSICC.
This code should work on any platform with a FORTRAN 77 compatible compiler. Editing will be necessary since it was originally written in FORTRAN-IV.
A FORTRAN 77 compiler is required.
E. C. Rodabaugh; F. M. O’Hara, Jr; S. E. Moore, “FLANGE: A Computer Code for the Analysis of Flanged Joints and Ring Type Gaskets” ORNL-5035 (January, 1976).
The package includes a self-extracting compressed Windows file that includes FORTRAN source files, sample input and output files, and the referenced document. No executables are included in the package.
KEYWORDS: PIPING, STRUCTURAL ANALYSIS, STRESS ANALYSIS