	Applies To
	Product(s):	AutoPIPE,
	Version(s):	ALL
	Area:	Calculation
	Original Author:	Bentley Technical Support Group

Dec 2014, AutoPIPE V8i 09.06.01.10

Problem:

I am trying to verify pressure extension result in AutoPIPE 09.04.01.05 using hand calculation. Could you please provide the formulas used in AutoPIPE for pressure elongation of a straight pipe (assuming pipe is free to expand). I am using ASME B31.3 and CSA Z662 codes.

Model has 2 different analysis sets, but the support loads dues to GR(1) and Gr(2) are different, why?

Solution:

Go through the following link:

http://communities.bentley.com/products/pipe_stress_analysis/f/275801/p/40611/89583.aspx#89583

AutoPIPE uses thick wall formula for calculation of pressure extension. A screen capture below:

01. Support loads dues to GR(1) and Gr(2) are different in AutoPIPE model using ASME B31.3, why?

Problem:

Solution:

See Also