| Applies To | |||
| Product(s): | AutoPIPE | ||
| Version(s): | 2004, XM, V8i | ||
| Area: | Results | ||
| Original Author: | Bentley Technical Support Group | ||
| Date Logged & Current Version | Aug. 2015 09.06.02.06 |
Problem:
The longitudinal stress calculated following the program documentation does not match the results provided by AutoPipe. Can you please provide hand calculations which match the AutoPipe results for a simple system (straight pipe)?
How are does Autopipe calculate the longitudinal stress in the general output file when a SIF is applied.
Solution:
Please see the following AutoPIPE help section:
Help > Contents> Contents Tab> Reference Information> Code Compliance Calculations> CAN-Z662 (2007)> Stresses Due to Sustained Loads (CSA-Z662 - 2007)> Case with Pressure Extension Cases and with Pcase in Sustained
The longitudinal pressure term in the above equation highlighted in yellow is can vary from
P= PD/4t, or A = AxF/area, or M = minimum of both, or set to N = 0.00.
This is controlled by the following setting: Tools> Model option> Results> Long Pressure (P/A/M/N) option.
Confirm that the correct form of this setting is used in the above equation.
See Also
CAN/CSA-Z662 Piping Code Calculations