Type of Nonlinear Stress output by NLGEOM & NLSTAT analysis

Sataz
Sataz Altair Community Member
edited October 2020 in Community Q&A

I am running geometric nonlinear analysis using NLGEOM (with NLELAST material model, true stress-strain data) in Optistruct ver.11 (ya, it's pretty old). May I know the nonlinear stress output by the solver is engineering stress/strain or true stress/strain.

 

Also, for NLSTAT, may I confirm whether the output is engineering stress/strain?

 

Thanks!

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited July 2017

    Hi Sataz,

     

    HyperMesh does not convert anything. So if your input is engineering stress strain values then the output will be the same. 

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