Slope Material Library
To define slope material properties, select Slope Material Library
from the toolbar or the Slope menu. The available input parameters depend on the Analysis Method (Lumped Mass or Rigid Body).
Materials List
In the Material List, all currently defined materials are listed. The material being edited is highlighted. You can:
- Delete the selected material by clicking
- Add a new material by clicking
- Show only the materials that are assigned to the slope by clicking
- To set the current material library as the default for all new files, to export the current material library as a file, or to import materials into the library, click on
Lose All Kinetic Energy on Contact
When selected, the material is assumed to be fully damping, meaning that any rock contact would immediately cancel the rock's kinetic energy and stop the rock. This is a simplified approach for modelling complete energy loss on rock-slope contact, and no other parameter input would be required in the dialog (i.e., all other fields would become disabled when the user selects Lose All Kinetic Energy on Contact). This option may be used to model rock contact with a water body or a highly damping material. As the rock stops under any circumstance when in contact with this material, this option may be unrealistic in some cases (e.g., overhangs).
Slope Material Properties (Lump Mass Method)
The following slope material properties can be defined when using the Lump Mass analysis method.
Statistical distributions can be defined for all variables.
Slope Material Properties (Rigid Body Method)
The following slope material properties can be defined when using the Rigid Body analysis method.
- Normal and Tangential Restitution
- Dynamic and Rolling Friction
- Forest/Vegetation Damping
- Slope Roughness
- Advanced Friction Parameters
Statistical distributions can be defined for all variables.
Predefined Materials
To access the list of predefined material types, click on the 
button. See Predefined Materials topic for more details.