The curve with cut-off material model is only available for 2D elements. This model is similar to the curve material model but will take into account the inability to accept tension loads. The curve with cut-off material properties is listed below. In addition to these it will be necessary to define the Curve Material Properties. It may also be necessary to define some Isotropic Material Properties.
Weight density of surrounding material:
The Weight density of surrounding material is used to calculate the gravity pressure at the element integration points. It is assumed that the material provides a hydrostatic pressure distribution.
Stiffness Reduction Factor:
When the tensile principal stress at an integration point exceeds the gravity pressure, a crack forms perpendicular to this principal stress and the stiffness across the crack is reduced by a factor specified in this field. This model is to be used with plane strain elements only and unloading is not permitted.
Shear Stiffness Reduction Factor:
When the tensile principal stress at an integration point exceeds the gravity pressure, a crack forms perpendicular to this principal stress. The shear stiffness at that integration point is reduced by the factor specified in this field. This is meant to model the loss in shear strength due to cracking. This model is to be used with plane strain elements only and unloading is not permitted