block contact property
command
Syntax
- block contact property keyword ... <range>
Assign joint constitutive model properties to subcontacts. The possible properties depend on the constitutive model assigned to the subcontact. Note that subcontacts must be created before properties can be assigned, using either
block zone generate
for deformable blocks, orblock contact generate-subcontacts
for rigid blocks.Properties are name value pairs where the name is the keyword given in the command and the value type is specific to the property.
The assignment will affect any block contact whose joint model includes the property named — noting that some properties, such as
friction‑residual
, for instance, appear in more than one joint model). Limiting a property assignment to block contacts that have a particular joint model assignment is done using therange
component of the command. For instance, in the following:block contact property cohesion 0.7e6 range jmodel 'softening-mohr'
the
range
component limits thecohesion
property specification to zones with a Softening Mohr-Coulomb (softening-mohr
) joint model assignment.See Constitutive Models in 3DEC for more details on each joint constitutive model.
Mohr-Coulomb (
mohr
) Joint ModelProperties are described in the topic area Mohr-Coulomb Joint Model In 3DEC in the 3DEC Theory section, which provides a full overview of the model. For convenience, these are also listed below.
mohr
Model Propertiescohesion cohesion‑residual dilation dilation-zero friction friction‑residual stiffness‑normal stiffness‑shear tension tension-residual
Softening-Healing Mohr-Coulomb (
softening-mohr
) Joint ModelProperties are described in the topic area Softening-Healing Mohr-Coulomb Joint Model In 3DEC in the 3DEC Theory section, which provides a full overview of the model. For convenience, these are also listed below.
shmohr
Model Propertiesalpha cohesion cohesion‑residual dc dilation dilation‑residual dilation‑zero friction friction‑current friction‑residual healing slip stiffness‑normal stiffness‑shear tension tension‑residual
Bilinear Mohr-Coulomb (
bilinear-mohr
) Joint ModelProperties are described in Bilinear Mohr-Coulomb Joint Model In 3DEC, which provides a full overview of the model. For convenience, these are also listed below.
bmohr
Model Propertiescohesion cohesion-2 cohesion‑residual c2-residual dilation dilation‑2 dilation‑zero friction friction‑2 friction‑residual f2-residual nstress nstress-residual stiffness‑normal stiffness‑shear tension tension‑residual
Continuously Yielding (
cyjjm
) Joint ModelProperties are described in the topic area Continuously Yielding Joint Model In 3DEC in the 3DEC Theory section, which provides a full overview of the model. For convenience, these are also listed below.
cyjm
Model Propertiesal exponent‑normal exponent‑shear friction‑initial friction‑residual kn‑current kn‑initial kn‑maximum kn‑minimum ks‑current ks‑initial ks‑maximum ks‑minimum plastic‑strain roughness sdisp‑peak sdisp‑residual sdisp sstress‑maximum sstress‑peak tol ussisref
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