	Applies To
	Product(s):	AutoPIPE
	Version(s):	All
	Area:	Report
	Original Author:	Bentley Technical Support Group
	Date Logged & Current Version	April. 2015 09.06.02.06

Problem:

How is the hoop stress in AutoPIPE's General stress piping code calculation computed?

As it seems to be much higher than the hoop stress in the code check of ASME B31.8.

Could you please explain the variables in the formulas provided here?

Solution:

Please see the following AutoPIPE help section:

Help > Contents> Contents Tab> Reference Information> Code Compliance Calculations> General>

See this section for details on the General Stress Hoop calculations. Details about the variable can be found in the "Definition of Terms" page, link provided at the bottom of the indicated page above.

This section should not be confused with the General Stress Sub-report calculations. The details for that sub-report can be seen in the following AutoPIPE help section:

Help > Contents> Contents Tab> Reference Information> General Stress Calculations>

From AutoPIPE help:

The General Pipe Stress Report is produced by enabling the General Stress option in the Batch Report dialog. Since the bending and shear stresses vary around the cross section of the pipe, AutoPIPE looks at 15° intervals around the cross section to determine the maximum stresses. Only the Total stress location is reported as a clockwise angle relative to the out-of-plane axis of the cross section. The total stress is user-specified as either the Max Shear stress or the Octahedral stress.

01. How is the hoop stress in AutoPIPE's General piping code calculation computed?

Problem:

Solution:

See Also