"Use corner data" check box

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

Dear all,

Can anyone tell me what happens when I don't check the 'Use corner data'? Why the results are so different.

I'm evaluating a beam with a bending load and comparing the results with the analytical solution, using corner data on, with simple averaging the results match the analytical solution exactly! With 'Use corner data' off, the results diverge a bit...

I'm using solid elements (C3D8I from Abaqus).

If someone has done a study about this, please tell me your experience.

Thanks a lot...

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2012

    Hi PCampos,

    If you don't check 'use corner data' you get the element stresses at the center (one value).

    If you check 'use corner data' you get normaly the stresses depended from the requested datas.

    CORNER or BILIN: Element stresses for shell and solid elements are output at the element center and grid points using bilinear extrapolation. (stresses are calculated at the integration points)

    I don't know what happens with beam elements.

    Regards

    Mario

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