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  3. The program uses DEFA for ERESX by default, which will not do extrapolation for elements with plasticity. Why is the maximum stress still higher than the yield stress defined by the bilinear isotropic hardening rule?

The program uses DEFA for ERESX by default, which will not do extrapolation for elements with plasticity. Why is the maximum stress still higher than the yield stress defined by the bilinear isotropic hardening rule?

Tagged: 19.2, General, materials, mechanical-apdl, Nonliear Mechanics, plasticity, structural-mechanics
    • April 5, 2023 at 2:33 pm
      FAQFAQ
      Participant

      The problem is that extrapolation is still implemented when the stress is close to the yield point. It introduces the error.

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