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Within layered shell objects, straight normals remain straight, which enforces full composite behavior between layers. Straight normals do not necessarily remain normal to the mid-surface, which allows transverse shear deformation. For membrane and bending behavior, quadratic displacement fields are assumed, with appropriate handling to prevent shear locking. Plane-stress behavior is assumed within each layer.
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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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For each direction, redistribution of forces may be modeled according to the nonlinear response of the material stress-strain curve, rather than the multi-axial stress state.
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Related Incidents:
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