HyperXtrude supports six different models to describe the constitutive behavior of polymers. The material models available in HyperXtrude are:
| • | Spriggs truncated power law model |
All these models use the effective shear rate of the flow field to compute the dependency of viscosity on the shear rate. Viscosity, besides being a strong function of the shear rate, also depends on the temperature of the material. HyperXtrude has five different functions to describe the temperature dependency and it can be used in conjunction with the models mentioned above. These functions are:
The following sections describe the details of the models with data syntax and examples.
Power Law Model
Spriggs Truncated Power Law Model
Carreau Yasuda Model
Cross Model
Modified Cross Model
Herschel Bulkley Model
Temperature Dependence
