After selecting the menu item Contour New Fracture contour, one or more 2D fracture contours can be created. The contour lines are the intersections of the fractures in the plane. After defining the fracture line using two points, the menu item Contour Edit k-contours Fracture patameters is available for selection.

 

 

After selecting the relevant fracture contours (display contours beforehand for selection!), the following input window appears in which the individual fracture parameters are defined:

 

Fracture parameters

 

• Dispersivity

The dispersivity of the fracture is defined here.

 

• Opening width

The aperture (opening width) of the fracture is defined here.

 

• Thickness

The thickness of the fracture is defined here, note that this only has an effect on 1D fractures.

 

• Angle of direction

The angle of incidence describes the inclination of the fracture in space (green sector in the figure above). It is only taken into account in 3D models.

 

• Direction of incidence

The direction of incidence describes the orientation of the fracture in the plane (red sector in the figure above). It is perpendicular to the intersection surface of the fracture (= course of the k-contour). The direction of incidence is only taken into account in 3D models.

You can create k-contours and enter the fracture parameters in both the 2D and 3D model. The k-contours are adopted as fracture elements in the Extras menu Fractures 1D/2D fractures from k-contour/fractures contours.

 

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