Linear elastic and Non Linear elastic giving same results

Altair Forum User
Altair Forum User
Altair Employee
edited November 2020 in Community Q&A

The results for an analysis with MAT1 (Linear elastic only) card and another with MATS1 (Non Linear using TABLES1 card) subcase is showing the same results.

The load applied should make the part undergo plastic deformation when MATS1 is used but this is not observed in the results.

 

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Answers

  • jiaru72300
    jiaru72300 Altair Community Member
    edited July 2018

    The mats1 card is used in the nonlinear subcase.

    But the loadstep of your model is “linear static” ，you should change it to 'nlstat'.

     

    image.png.6f98b1ed7a5792c8c43040b20972141b.png

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited July 2018

    @mramakri

     

    Run NLSTAT analysis with MATS1 and compare linear static results. 

     

    MATS1 will be ignored when the analysis type is LINEAR. 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited August 2018

    Thank you

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