Hyperelastic Modelling of Soft Tissues

General discussions about how to formulate a script for FlexPDE.

Hyperelastic Modelling of Soft Tissues

Postby Smith_Hk on Wed Sep 14, 2016 12:00 pm

Hello ,

As I tried to model the Neo-Hookean material behaviour on FlexPDE, I have some difficulties on optimising the code.
So, What I have done so far is that I have defined the inverse of deformation gradient to insert the displacement variables like (U,V,W) , and afterwards the left-Cauchy green tensor has been defined for applying it in the Neo-Hookean model. Also parameters like Shear,Young modulus have been defined .
The question is , has anyone used this method for calculating the stress-strain relationship of the hyperelastic behaviour of soft tissues or rubbers?

Regards,

P.S. the reason that I've applied the inv of deformation is that I have variables (U,V,W) in current configuration and the deformation tensor is ident plus the partial derivative of u by X in reference configuration.( F = I + Gradu = I + du/dX)
Smith_Hk
 
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