Description: In material models defined within the parallel rheological framework, stiffness ratios are used to scale the elastic response of each network material. In previous releases these ratios were constant throughout the analysis. Now you can define the stiffness ratios as functions of temperature and predefined field variables.

In addition, the material models defined using the parallel rheological framework can now be used in a steady-state transport analysis. However, in this case the material definition cannot include plasticity.