fracture attribute command
Syntax
- fracture attribute keyword <range>
Primary keywords:
aperture area dip-direction diameter dip length position position-x position-y position-z
Modify fracture attributes. This command is a synonym for the
fracture initialize
command.Note
- Modification of the fracture geometry will fail if the resulting fracture would not fall entirely within the model domain.
- Fracture attributes are characteristics of the fractures, such as position or size. These
are distinct from fracture properties (assigned with the
fracture property
command), which are surface properties of the fractures that are used to fill contact model properties with thefracture contact-model
command.
- dip-direction f (3D only)
Dip direction in degrees, as measured in a clockwise fashion from the positive \(y\)-axis, where f is in the range [0,360].
- dip f
Dip angle in degrees, where f is in the range {[0,180] in 2D; [0,90] in 3D}. In 2D, dip is the clockwise angle measured from the positive \(x\)-axis. In 3D, dip is the angle from the dip direction projected on the \(xy\)-plane to the fracture surface measured in the negative \(z\)-direction.
- position v
Fracture position vector.
- position-x f
Fracture position (\(x\)-component).
- position-y f
Fracture position (\(y\)-component).
- position-z f (3D only)
Fracture position (\(z\)-component).
Usage Example
The following example illustrates how the fracture attribute
command can be
used to rotate all fractures (3D). At the end, all fractures with center in the layer \(z\in [-2;2]\) have the same orientation.
model new
model random 10000
model domain extent -5 5 -5 5 -5 5
;Modify the default template
fracture template modify-default size-limits 0.5 5
;Generate fractures using the default template
fracture generate tolerance-box -4 4 -4 4 -4 4 fracture-count 1000
; Change some fracture attibutes
fracture attribute aperture 1 dip 25 dip-direction 270 range position-z -2 2
return
See Also: fracture initialize
| fracture property
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