Yeoh

The Yeoh material model is described in terms of the strain energy potential, W, 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 Yeoh 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 Yeoh material model on the Hyperelastic Material Definition dialog box.

Return to About Material Models.