Applies To Product(s): AutoPIPE, Version(s): 2004, XM, & V8i Environment: N/A Area: reports / results Subarea: Original Author: Bentley Technical Support Group Problem: AutoPIPE: results are 0 / zero Description: when viewing results in output report or results grids, values are blank or 0.00 TR Number: None Product: AutoPIPE Version: N/a Area: General Problem ID#: 71559 Answer: One or more of the following may be affecting the results displayed in the Results Grids or on the Output Reports: 1. Confirm all Pipe property values are correct. a. Review the Pipe Properties grid, are all the values correct? b.Open the model in AutoPIPE, select Tools Model input listing check on all sub reports, and press OK button. In a few moments AutoPIPE Viewer will display the report, use the Edit Find feature to look for all occurrence of "NaN". Fix model with these suggestions 2. Confirm all Press/Temp data is correct. 3. Axial force = 0 due to press & temp, the only time AutoPIPE will apply the P*A force is for expansion joint with pressure area value entered as non-zero. In all other cases, pressure is apply as strain, just like the case of temperature. 4. Suggest creating new folder on desktop, copy just the DAT fill into the new folder location, and process the model with AutoPIPE to create a new output report. Does this new output report resolve the issue? If yes, there is a problem with your server. 5. If stress is 0.00 due to thermal, pipe may not be restrained to cause a thermal stress (ex. drain leg on bottom of pipe, the results grid for Pressure, Bending, Axial force, Moments in/out and torsion are all 0.00). 6. Max displacement stress = 0.00. Confirm the Press/Temp/PipeID tab, expansion values are greater than 0.00. Review the rest of the tab data for inconsistencies. 7. No displacements were produced in a simple straight pipe model under internal pressure. a. Confirm Load Static Analysis Sets Modify an analysis set "Calculate pressure extension cases, e.g. P1, P2, etc" is checked ON. b. Also, under Tools Model Options Results "Include axial force" is checked ON (see online help for the feature to be sure that you would like this option enabled for your analysis) 8. SAM (Seismic Anchor Movement) analysis results are 0.00 for impose support displacement. Confirm by default Load Static Analysis Load Set number 1 should be analyzed. Actually found only 1 analysis set in the model where the only Analysis Set No. = 2, after resetting value = 1, re-run analysis, results were correctly displayed for all SAM cases. 9. Check all values used for Beam Section ID are all correct, i.e. 0 Tools Combinations A. After analysis, verify Tools Combinations code/non-code tabs have actual combinations with correct settings. Tools Model Options A. Under Tools Model Options General switch the piping code temporarily to another code and switch back to reset results options, Reanalyze model and review results again. B. Under Tools Model Options Results "Include axial force" is checked ON (see online help for the feature to be sure that you would like this option enabled for your analysis) C. Under Tools Model Options Results "Design Pressure factor" is set to value 0.00 (suggest default = 1.0 ) (see online help for the feature to be sure that you would like this option enabled for your analysis) D. Under Tools Model Options Results Confirm all values that are set to 0.00 is correct for your analysis. (see online help for the feature to be sure that you would like these settings as such for your analysis). Output report: A. When creating an output report, Results output report verify that more than "Results Summary", "Analysis Summary", and "Sorted Stresses" sub-reports are checked ON. B. When creating an output report, Results output report verify that " Limit results to highlighted points " is Not checked; unless option was actually in use with a previous pipe selection. Model files: A. Confirm the model's *.CMB file is 0 bytes. Code Specific A. Euro code hoop allowable is not calculated if temperature in the creep range and no Rp02t and Rp10t available ( CAE-TR-8187). B. Using BS 7159 piping code, Hot design strain 0.0. See Also Bentley AutoPIPE External Links Bentley Technical Support KnowledgeBase Bentley LEARN Server Comments or Corrections? Bentley's Technical Support Group requests that you please submit any comments you have on this Wiki article to the "Comments" area below. THANK YOU!
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