Specifies whether the axial stress term is included in the code stress computation.
If you select Default in this configuration setting, the software uses whatever the currently active piping code recommends. Only the process piping codes (except for B31.3), or codes where the sustained stress equation is not explicitly given, have the F/A stresses included in the sustained and occasional stress equations. The power piping codes (such as B31.1) do not include the F/A stresses because the equations given explicitly in the code do not include them. To force CAESAR II to include the axial stress term in those codes that do not include it already by default, select Yes.
The F/A stresses discussed here are not due to longitudinal pressure. These are the F/A stresses due to structural loads in the piping system itself.