Yeoh

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.