Optional Features

The Barton-Bandis model is a series of empirical relations that describe the effects of surface roughness on discontinuity deformation and strength. The model provides calculations for joint normal behavior and joint shear behavior. The Barton-Bandis model is an option that is available with the code at an additional cost.

With this option, user-defined constitutive models can be written in C++ and compiled as DLLs that can be loaded whenever needed. Models may be shared with other Itasca codes. New DLL models can be obtained from the Itasca web site devoted specifically to model development and exchange: www.itasca-udm.com.