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AutoPIPE Wiki 03. How category and nominal stress parameters affects the material safety factor?
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    03. How category and nominal stress parameters affects the material safety factor?

    Applies To
    Product(s): AutoPIPE Vessel
    Version(s): ALL
    Area: General
    Date Logged
    & Current Version
    June 2023
    43.01.01.011

    Problem:

    How category and nominal stress parameters affects the material safety factors?

    Solution:

    Answer is, there is no impact of category parameters on material safety factors. But Nominal stress parameter affects the safety factor and hence nominal design stress.

    If you want to know how to change the safety factors, refer wiki here

    If you are designing equipment with CODAP, in Characteristics field we have two cells, Category & Nominal Stress as follows,

    Based on the selection of Construction Category, Factor z changes, (Weld joint efficiency).

    Nominal design stress values depends on the Nominal stress type selected.

    But now even after we change the nominal stress type there is no change in the safety factor.

    We logged a bug for this and our team is working on it and will be implemented in upcoming version.

    Workaround:

    Step 1: Choose your required Nominal stress type,

     Step 2: Change default safety factor to User Defined

     Step 3: Again change Default Safety Factor to Code Values

    This will refresh your selection and you can see the correct safety factor as well as nominal design stress.

    See Also

    AutoPIPE Vessel

    Bentley LEARN Server

    • AutoPIPE Vessel
    • Safety Factor
    • CODAP
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    • Tanaji Gaikwad Created by Bentley Colleague Tanaji Gaikwad
    • When: Fri, Jun 30 2023 7:15 AM
    • Tanaji Gaikwad Last revision by Bentley Colleague Tanaji Gaikwad
    • When: Thu, Aug 3 2023 1:37 AM
    • Revisions: 6
    • Comments: 0
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