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Comment: Fixed typo.

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Answer: Yes, material nonlinearity may be applied to layered shell objects.

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AS of SAP2000 V14.0.0.

What is the multi-axial failure criteria available to nonlinear layered shells?

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Related Incidents:

  • Incident 23755: Multi-axial failure criterion for nonlinear shell elements.

  • Incident 42191: Multi-axial strength criterion for concrete.

    • Email Multi-axial strength criterion for concrete: (ok → ed, 2/1/2012, ID 8585217)

What is the difference between

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Directional and Coupled material component behavior?

Answer: In a layered shell section, there are two types of layers: Directional and Coupled. The Directional type of layered shell applies the uniaxial stress-strain curve defined in the material property in the S11, S22, and/or S12 directions, but each direction is independent of the others. For example, yielding in the S11 direction will not affect the S22 direction and Poisson's ratio will be 0.

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