Failure Analysis
In COMSOL Multiphysics, both laminate theories allow computation of failure indices or safety factors based on the following criteria:
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von Mises Isotropic
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Tresca Isotropic
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Rankine Isotropic
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Saint-Venant Isotropic
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Jenkins Orthotropic
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Waddoups Orthotropic
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Tsai–Hill Orthotropic
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Hoffman Orthotropic
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Tsai–Wu Orthotropic
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Zinoviev Orthotropic
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Hashin–Rotem Orthotropic
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Hashin Orthotropic
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Puck Orthotropic
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LaRC03 Orthotropic
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Tsai–Wu Anisotropic
In addition to that, the ESL theory includes the following failure criteria:
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Azzi–Tsai–Hill Orthotropic
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Norris Orthotropic
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Modified Tsai–Hill Orthotropic
Add a Safety subnode to compute the safety factor for a given criterion. Additional built-in variables are available when multiple Safety subnodes are added. The combined safety factor, combined failure index, combined damage index, and combined margin of safety provide a conservative approach to safety assessment.
In the Structural Mechanics Module User’s Guide:
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The Safety node
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Safety Factor Evaluation