Simsolid stress strain curve

KF_22570
KF_22570 Altair Community Member
edited August 27 in Community Q&A

Which the nominal or true stress/strain should I input for the stress vs strain curve to do non-linear structural analysis in Simsolid?

I searched on Google, but I cannot find it. I'd appreciate if you could help me in this question.

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Answers

  • Gouthami Polina_22137
    Gouthami Polina_22137
    Altair Employee
    edited August 23

    Hello,

    By default, Simsolid assumes the input curve is engineering/nominal stress-strain in the non-linear structural analysis. However, if you have a true stress-strain curve, use the following to convert true stress-strain curve to engineering stress-strain curve.

    CSV File Format

    CSV Fields

    The format of the file has a header "strain, stress" and corresponding row of values. If the data is true stress-strain, add [true] to the end of the header row:

    stress, strain, [true]

    Thanks,

    Gouthami

  • KF_22570
    KF_22570 Altair Community Member
    edited August 27
    Gouthami Polina_22137 said:

    Hello,

    By default, Simsolid assumes the input curve is engineering/nominal stress-strain in the non-linear structural analysis. However, if you have a true stress-strain curve, use the following to convert true stress-strain curve to engineering stress-strain curve.

    CSV File Format

    CSV Fields

    The format of the file has a header "strain, stress" and corresponding row of values. If the data is true stress-strain, add [true] to the end of the header row:

    stress, strain, [true]

    Thanks,

    Gouthami

    Thank you very much for your reply. I have nominal stress-strain curve, so I understand I can use it as is. I appreciate your quick reply!

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