Homogenization and Cell Periodicity
In order to perform a micromechanics analysis of a composite lamina and compute its homogenized orthotropic material properties, the Cell Periodicity node in the Solid Mechanics interface is used.
In order to extract the homogenized material properties, the Cell Periodicity node performs the following sequence of operations:
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Applies periodic boundary condition to three pairs of faces of the RUC or RVE.
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Creates a stationary study with six different unit load cases.
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Solves load cases and obtains the components of homogenized elasticity matrix of a lamina from the computed stress-strain relations.
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Creates a new homogeneous material node under Global Definitions- > Materials and assigns the computed homogenized elasticity matrix to it.
This new homogeneous material can be used as an input to the macromechanics analysis.
In the Structural Mechanics Module User’s Guide:
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Effective Properties of Periodic Structures
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Cell Periodicity
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Cell Periodicity