Gross Structural Discontinuity

Structural or material discontinuity which affects the stress or strain distribution across the entire wall thickness over a region of significant area. EXAMPLE End-to-pipe junction, connector-to-pipe junction, the junction of two pipes of different diameters, thickness or material, or a stiffener-to-pipe junction.

Source: API RP 17G, Recommended Practice for Completion/Workover Risers, Second Edition, July 2006 (Reaffirmed April 2011). Global Standards


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