Source code for abaqus.Interaction.StdContactControl
from abaqusConstants import *
from .ContactControl import ContactControl
[docs]class StdContactControl(ContactControl):
"""The StdContactControl object is used in Abaqus/Standard analyses to specify optional
solution controls for problems involving contact between bodies.
The StdContactControl object is derived from the ContactControl object.
Notes
-----
This object can be accessed by:
.. code-block:: python
import interaction
mdb.models[name].contactControls[name]
The corresponding analysis keywords are:
- CONTACT CONTROLS
"""
def __init__(self, name: str, stiffnessScaleFactor: float = 1,
penetrationTolChoice: SymbolicConstant = RELATIVE,
relativePenetrationTolerance: float = None, absolutePenetrationTolerance: float = None,
frictionOnset: SymbolicConstant = None, automaticTolerances: Boolean = OFF,
maxchp: int = 0, perrmx: float = 0, uerrmx: float = 0,
stabilizeChoice: SymbolicConstant = NONE, dampFactor: float = 1, dampCoef: float = 0,
tangFraction: float = 1, eosFraction: float = 0,
zeroDampingChoice: SymbolicConstant = COMPUTE, zeroDamping: float = None,
enforceWithLagrangeMultipliers: SymbolicConstant = DEFAULT):
"""This method creates an StdContactControl object.
Notes
-----
This function can be accessed by:
.. code-block:: python
mdb.models[name].StdContactControl
Parameters
----------
name
A String specifying the contact controls repository key.
stiffnessScaleFactor
A Float specifying the factor by which Abaqus/Standard will scale the default penalty
stiffness to obtain the stiffnesses used for the contact pairs. Only contact
interactions defined with augmented Lagrangian surface behavior will be affected by this
argument. The default value is 1.0.
penetrationTolChoice
A SymbolicConstant specifying whether the allowable penetration is an absolute value or
a value relative to the characteristic contact surface face dimension. Only contact
interactions defined with augmented Lagrangian surface behavior will be affected by this
argument. Possible values are RELATIVE and ABSOLUTE. The default value is RELATIVE.
relativePenetrationTolerance
A Float specifying the ratio of the allowable penetration to the characteristic contact
surface face dimension. The float values represent percentages (e.g.: 0.001=0.1%). Only
contact interactions defined with augmented Lagrangian surface behavior will be affected
by this argument. The default value is 10–3.The *relativePenetrationTolerance* argument
applies only when *penetrationTolChoice*=RELATIVE. The *relativePenetrationTolerance*
and *absolutePenetrationTolerance* arguments are mutually exclusive.
absolutePenetrationTolerance
None or a Float specifying the allowable penetration. Only contact interactions defined
with augmented Lagrangian surface behavior will be affected by this argument. The
*absolutePenetrationTolerance* argument applies only when
*penetrationTolChoice*=ABSOLUTE. The *relativePenetrationTolerance* and
*absolutePenetrationTolerance* arguments are mutually exclusive. The default value is
None.
frictionOnset
A SymbolicConstant specifying when the application of friction occurs. Possible values
are:
- IMMEDIATE, specifying the friction is included in the increment when contact occurs.
- DELAYED, specifying the application of friction is delayed until the increment after
contact occurs.
automaticTolerances
A Boolean specifying whether Abaqus/Standard should automatically compute an overclosure
tolerance and a separation tolerance to prevent chattering in contact. The default value
is OFF.The *automaticTolerances* argument cannot be used with the *maxchp*, *perrmx*,
and *uerrmx* arguments.
maxchp
An Int specifying the maximum number of points that are permitted to violate contact
conditions in any increment. The default value is 0.Either the *perrmx* or the *uerrmx*
argument must be specified in conjunction with the *maxchp* argument.
perrmx
A Float specifying the maximum value of tensile stress (tensile force in GAP- or
ITT-type contact elements) allowed to be transmitted at a contact point. The default
value is 0.0.The *perrmx* argument must be specified in conjunction with the *maxchp*
argument.
uerrmx
A Float specifying the maximum overclosure distance allowed at a secondary node that is
considered to be open. The default value is 0.0.The *uerrmx* argument must be specified
in conjunction with the *maxchp* argument.
stabilizeChoice
A SymbolicConstant specifying whether or not viscous damping will be specified, and if
so, how it will be specified. Possible values are NONE, AUTOMATIC, and COEFFICIENT. The
default value is NONE.
dampFactor
A Float specifying the value of the damping factor. This value is multiplied by the
calculated damping coefficient. The default value is 1.0.This argument is only valid
when *stabilizeChoice*=AUTOMATIC.
dampCoef
A Float specifying the damping coefficient. The default value is 0.0.This argument is
only valid when *stabilizeChoice*=COEFFICIENT.
tangFraction
A Float specifying the tangential stabilization as a fraction of the normal
stabilization (damping). The default value is 1.0.This argument is valid only if
*stabilizeChoice* = AUTOMATIC or COEFFICIENT.
eosFraction
A Float specifying the fraction of the damping that remains at the end of the step. The
default value is 0.0.This argument is valid only if *stabilizeChoice* = AUTOMATIC or
COEFFICIENT.
zeroDampingChoice
A SymbolicConstant specifying how the zero-damping clearance will be specified. Possible
values are COMPUTE and SPECIFY. The default value is COMPUTE.This argument is valid only
if *stabilizeChoice* = AUTOMATIC or COEFFICIENT.
zeroDamping
None or a Float specifying the clearance at which damping becomes zero. This argument is
valid only when *zeroDampingChoice*=SPECIFY. This argument is valid only if
*stabilizeChoice* = AUTOMATIC or COEFFICIENT. The default value is None.
enforceWithLagrangeMultipliers
A SymbolicConstant specifying whether to enforce the contact constraints with Lagrange
multipliers. Possible values are DEFAULT, ENFORCEMENT_OFF, and ENFORCEMENT_ON. The
default value is DEFAULT.
Returns
-------
A StdContactControl object.
Raises
------
RangeError
"""
super().__init__()
pass
[docs] def setValues(self, stiffnessScaleFactor: float = 1, penetrationTolChoice: SymbolicConstant = RELATIVE,
relativePenetrationTolerance: float = None, absolutePenetrationTolerance: float = None,
frictionOnset: SymbolicConstant = None, automaticTolerances: Boolean = OFF,
maxchp: int = 0, perrmx: float = 0, uerrmx: float = 0,
stabilizeChoice: SymbolicConstant = NONE, dampFactor: float = 1, dampCoef: float = 0,
tangFraction: float = 1, eosFraction: float = 0,
zeroDampingChoice: SymbolicConstant = COMPUTE, zeroDamping: float = None,
enforceWithLagrangeMultipliers: SymbolicConstant = DEFAULT):
"""This method modifies the StdContactControl object.
Parameters
----------
stiffnessScaleFactor
A Float specifying the factor by which Abaqus/Standard will scale the default penalty
stiffness to obtain the stiffnesses used for the contact pairs. Only contact
interactions defined with augmented Lagrangian surface behavior will be affected by this
argument. The default value is 1.0.
penetrationTolChoice
A SymbolicConstant specifying whether the allowable penetration is an absolute value or
a value relative to the characteristic contact surface face dimension. Only contact
interactions defined with augmented Lagrangian surface behavior will be affected by this
argument. Possible values are RELATIVE and ABSOLUTE. The default value is RELATIVE.
relativePenetrationTolerance
A Float specifying the ratio of the allowable penetration to the characteristic contact
surface face dimension. The float values represent percentages (e.g.: 0.001=0.1%). Only
contact interactions defined with augmented Lagrangian surface behavior will be affected
by this argument. The default value is 10–3.The *relativePenetrationTolerance* argument
applies only when *penetrationTolChoice*=RELATIVE. The *relativePenetrationTolerance*
and *absolutePenetrationTolerance* arguments are mutually exclusive.
absolutePenetrationTolerance
None or a Float specifying the allowable penetration. Only contact interactions defined
with augmented Lagrangian surface behavior will be affected by this argument. The
*absolutePenetrationTolerance* argument applies only when
*penetrationTolChoice*=ABSOLUTE. The *relativePenetrationTolerance* and
*absolutePenetrationTolerance* arguments are mutually exclusive. The default value is
None.
frictionOnset
A SymbolicConstant specifying when the application of friction occurs. Possible values
are:
- IMMEDIATE, specifying the friction is included in the increment when contact occurs.
- DELAYED, specifying the application of friction is delayed until the increment after
contact occurs.
automaticTolerances
A Boolean specifying whether Abaqus/Standard should automatically compute an overclosure
tolerance and a separation tolerance to prevent chattering in contact. The default value
is OFF.The *automaticTolerances* argument cannot be used with the *maxchp*, *perrmx*,
and *uerrmx* arguments.
maxchp
An Int specifying the maximum number of points that are permitted to violate contact
conditions in any increment. The default value is 0.Either the *perrmx* or the *uerrmx*
argument must be specified in conjunction with the *maxchp* argument.
perrmx
A Float specifying the maximum value of tensile stress (tensile force in GAP- or
ITT-type contact elements) allowed to be transmitted at a contact point. The default
value is 0.0.The *perrmx* argument must be specified in conjunction with the *maxchp*
argument.
uerrmx
A Float specifying the maximum overclosure distance allowed at a secondary node that is
considered to be open. The default value is 0.0.The *uerrmx* argument must be specified
in conjunction with the *maxchp* argument.
stabilizeChoice
A SymbolicConstant specifying whether or not viscous damping will be specified, and if
so, how it will be specified. Possible values are NONE, AUTOMATIC, and COEFFICIENT. The
default value is NONE.
dampFactor
A Float specifying the value of the damping factor. This value is multiplied by the
calculated damping coefficient. The default value is 1.0.This argument is only valid
when *stabilizeChoice*=AUTOMATIC.
dampCoef
A Float specifying the damping coefficient. The default value is 0.0.This argument is
only valid when *stabilizeChoice*=COEFFICIENT.
tangFraction
A Float specifying the tangential stabilization as a fraction of the normal
stabilization (damping). The default value is 1.0.This argument is valid only if
*stabilizeChoice* = AUTOMATIC or COEFFICIENT.
eosFraction
A Float specifying the fraction of the damping that remains at the end of the step. The
default value is 0.0.This argument is valid only if *stabilizeChoice* = AUTOMATIC or
COEFFICIENT.
zeroDampingChoice
A SymbolicConstant specifying how the zero-damping clearance will be specified. Possible
values are COMPUTE and SPECIFY. The default value is COMPUTE.This argument is valid only
if *stabilizeChoice* = AUTOMATIC or COEFFICIENT.
zeroDamping
None or a Float specifying the clearance at which damping becomes zero. This argument is
valid only when *zeroDampingChoice*=SPECIFY. This argument is valid only if
*stabilizeChoice* = AUTOMATIC or COEFFICIENT. The default value is None.
enforceWithLagrangeMultipliers
A SymbolicConstant specifying whether to enforce the contact constraints with Lagrange
multipliers. Possible values are DEFAULT, ENFORCEMENT_OFF, and ENFORCEMENT_ON. The
default value is DEFAULT.
Raises
------
RangeError
"""
pass