A PARAMETRIC THREE-DIMENSIONAL FINITE ELEMENT STUDY OF 45 DEGREE LATERAL CONNECTIONS (To Purchase Call 1-800-854-7179 USA/Canada or 303-397-7956 Worldwide)
This bulletin presents a summary of the results of parametric three-dimensional analyses of 45 degree lateral connections with various d/D@ DIT@ and t/T values and subjected to internal pressure and external in-plane moment loading on the branch (nozzle) and the run pipe (vessel). The main objective of this parametric study@ sponsored by the subcommittees on Reinforced Openings and External Loads (ROEL) and Piping@ Pumps and Valves (PPV) of the Pressure Vessel Research Committee (PVRC) is to develop and recommend to ASME a set of stress indices for the structural integrity evaluation of 45 degree branch connections which are found in nuclear@ fossil and petrochemical installations. The parametric studies began in 1978@ and the last of the four model studies was completed in May of 1982. Careful consideration was given to the selection of lateral configurations to see that they covered a broadrange of practical applications. Based on an extensive exploratory study@ finite element method was selected as the tool for the parametric evaluation