WRC 329:1987

$16.90

Accuracy of Stress Intensification Factors for Branch Connections

Published By	Publication Date	Number of Pages
WRC	1987	50

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Category: WRC

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Description

This report presents a detailed examination of the stress intensification factor (SIF) formulations for perpendicular branch connections that are specified in American standard codes for use in the design of industrial and nuclear Class 2 and 3 piping systems. The historical evolution of these formulations, beginning with the initial fatigue test data, is discussed first to provide a consistent basis for later discussions of identified problem areas. Solutions to these problems are developed throughout the report and finally summarized as a series of recommendations for specific changes in the ANSI and ASME piping design codes. An Appendix gives recommended code language proposals for revisions to Subsections NC and ND of Section III, ASME Boiler and Pressure Vessel Code.

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