The FieldTwin Design Wall Thickness module calculates the wall thickness of a rigid (single wall) pipeline/riser/jumper using basic calculations derived from either the API RP 1111 (4th Edition) or DNVGL OS-F101 (2013 Edition) industry guidelines. The wall thickness values provided by the FieldTwin Wall Thickness module only consider the burst and collapse design load cases.
The module estimates two (2) wall thickness values: one that follows a methodology for the burst design load case and another value that uses a methodology for the collapse design load case. The single value returned by the Wall Thickness module will be the larger of these two values. When the user transfers the wall thickness value to the connection’s metadata model, only the wall thickness value from one of the two design codes can be selected.