Reduced Polynomial Form of Order 2

The equation of strain energy potential, W in Reduced Polynomial form of order 2 is as follows:

where , , , are material constants.

You can use materials constants to calculate the initial shear modulus as follows:

You can also calculate initial bulk modulus for the material as follows:

When you select Reduced Polynomial form of order 2 material model to define the hyperelastic material, you must specify values for , , , .

For materials that are nearly incompressible, Creo Simulate uses incompressibility conditions. If the specified values of and is less than,

Creo Simulate uses following values of and during the analysis:

=.

=

where G is the initial shear modulus.

Creo Simulate calculates these constants when you select Reduced Polynomial form of order 2 material model on the Hyperelastic Material Definition dialog box.

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