ERROR_STR(%) Mecway Output using CCX

tbordintbordin
Hi everyone,

I was wondering if anyone had any further information, or previously encountered on the ERROR_STR(%) solution output when using the Calculix solver.
See attached screengrab for reference.

Cheers,
Tim

Comments

  • VictorVictor
    This appears to be the "gradient error estimator" (see CCX manual). If it's this, then it's an estimate of the error in the maximum principal stress and is obtained using a heuristic based on the difference between values at the integration points in each element.

    I'm not sure why it's appearing without having to specify ERR in the *EL FILE card.
  • GermanGerman
    It would be good if this value ERROR_STR_% could be used in formulas, so absolute error could be calculated multiplying % error by principal stress.
  • VictorVictor
    I'm unlikely to do that soon unless there's a lot of demand because it's a bit tricky.
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