Material Models

Material Models

There are many material models available for structural analysis in COMSOL Multiphysics. In this section, theory for all material models is presented. The material models available, and also some detailed aspects of them, depend on which licenses you have. The material models, grouped by families, are as follows:

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Linear Elastic Material

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Nonlinear Elastic Materials

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Bilinear Elastic

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Hardin-Drnevich

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Linear Viscoelastic Materials

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Generalized Maxwell Model

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Standard Linear Solid Model

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Kelvin-Voigt Model

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Hyperelastic Material Models

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St Venant-Kirchhoff

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Mooney-Rivlin, Two Parameters

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Mooney-Rivlin, Five Parameters

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Mooney-Rivlin, Nine Parameters

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Elastoplastic Material Models

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von Mises Criterion

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Tresca Criterion

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Shima-Oyane Criterion

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Gurson Criterion

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Gurson-Tvergaard-Needleman Criterion

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Fleck-Kuhn-McMeeking Criterion

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FKM-GTN Criterion

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Mohr-Coulomb Criterion

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Drucker-Prager Criterion

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Matsuoka-Nakai Criterion

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Lade-Duncan Criterion

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Hill Orthotropic Plasticity

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Failure Criteria for Concrete, Rocks, and Other Brittle Material

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Bresler-Pister Criterion

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Willam-Warnke Criterion

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Ottosen Criterion

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Original Hoek-Brown Criterion

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Generalized Hoek-Brown Criterion

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Elastoplastic Soil Models

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Creep and Viscoplasticity

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Norton Law (Power law)

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Norton-Bailey Law

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Garofalo Law (Hyperbolic Sine Law)

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NaBarro-Herring Creep (Diffusional Creep)

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Coble Creep (Diffusional Creep)

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Weertman Creep (Dislocation Creep)

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Anand Viscoplastic Model

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Chaboche Viscoplastic Model

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Perzyna Viscoplastic Model

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Creep Potential

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Volumetric Creep

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Deviatoric Creep

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User Defined Creep

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Piezoelectric Material

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Magnetostrictive Material

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Rigid Domain Model

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Safety Factor Evaluation

You can also add a material model which you have coded yourself and made available as a binary library file using an External Stress-Strain Relation.

In the COMSOL Multiphysics Reference Manual:

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Working with External Materials

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External Material