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View Full Version : ABAQUS Hyperelasticity (Mooney-Rivlin) and Viscoelasticity (Voigt)



yoki
2010-12-15, 09:35
Hi !

I have to define the hyperelasticity and the viscoelasticity of my elastomer.

For hyperelasticity, I know nominal stress and strain from a test, so I define Uniaxial test data.

Without viscoelasticity, my results is good.

Now if I want to define both :hyperelasticity and a viscoelastic model (Voigt for example). By using Frequency/Tabular/Omega g* real and imag, there is no effect on my results.

I don't understand why my results is always the same whatever coefficients for Voigt model ?

thanks for your help, i'm really lost, and sorry if there are already posts on my subject, i don't know where looking for :(

Jorgen
2011-02-20, 14:25
When you use a viscoelastic material model then you will need to use a *VISCO step, not a *STATIC step.

-Jorgen