Hello Hugo, Please see the following AutoPIPE help section: Help > Contents> Contents Tab> Reference Information> Code Compliance Calculations> ASME B31.8 (2012)> Thermal Expansion Stress Range (ASME B31.8 - 2012) and the other documents in this section for details about the code calculations being performed. In addition, with AutoPIPE opened, and a model loaded , select Tools> Model Options> Results> Total stress(Oct/Max). Regards, Mike Dattilio Bentley TSG Support Analyst ===================================================
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