Ogden Rubber Material Model

A versatile model that can be used for rubber polymer and biological tissues.

Ogden rubber material model.

Depending upon the number of constants or terms selected in the material drop down menu you need to enter the power coefficients alpha and the ogden material constants mu. For many materials linear elastic models do not accurately describe the observed material behaviour. The model relies on the fact that the material behaviour can be described by means of a strain energy density function whence the stress strain relationships can be derived. The helmholtz free energy for the ogden model can be written in different ways.

The ogden material model is a hyperelastic material model used to describe the non linear stress strain behaviour of complex materials such as rubbers polymers and biological tissue. Ogden hyper elastic can be used to model rubber like materials undergoing large deformations. The ogden material model is a hyperelastic material model used to describe the non linear stress strain behaviour of complex materials such as rubbers and biological tissue. One common compressible representation 27 is given in equation 5 117.

A hyperelastic or green elastic material is a type of constitutive model for ideally elastic material for which the stress strain relationship derives from a strain energy density function the hyperelastic material is a special case of a cauchy elastic material. The ogden model has been successfully applied to the analysis of o rings seals and other industrial products.