The frame "Soils" contains a table with the list of input soils. Basic information regarding the current soil is displayed in the right part of the frame. If there are more items (soils) selected in the table, the information about individual soils is ordered consecutively.
The basic material parameters are the Young modulus of elasticity E and the Poisson's ratio (they are needed in all models). Most nonlinear models require defining the angle of internal friction and cohesion of the soil. In both cases the analysis adopts effective parameters of the angle of internal friction φef and cohesion cef.
The required list of material parameters to input also depends on the selected input mode. Assuming advanced program options (can be selected in the frame "Settings") allows us to define additional (advanced) material parameters (e.g. the Biot parameter, Effective unit modulus of water etc.). In most practical applications these material parameters are not particularly important and mostly serve to academic purposes.
Individual material models can be combined in the analysis - each soil can be assigned its own material model.
Data of input soils can be copied within all GEO5 programs using "GeoClipboard".