This option is used to define connector damage initiation criteria for connector elements that have available components of relative motion. It is almost always used in conjunction with the *CONNECTOR DAMAGE EVOLUTION option.
Product: ABAQUS/Explicit
Type: Model data
Level: Model
Set CRITERION=FORCE (default) to specify a damage initiation criterion based on total forces/moments in the connector.
Set CRITERION=MOTION to specify a damage initiation criterion based on relative displacements/rotations in the connector.
Set CRITERION=PLASTIC MOTION to specify a damage initiation criterion based on the equivalent plastic relative motion as defined by the associated plasticity definition. If CRITERION=PLASTIC MOTION, the *CONNECTOR POTENTIAL option cannot be used in conjunction with the *CONNECTOR DAMAGE INITIATION option.
Set this parameter equal to the connector's component of relative motion for which a connector damage initiation criterion is specified. See “Connection-type library,” Section 17.1.5 of the ABAQUS Analysis User's Manual, for components of relative motion definitions. If this parameter is used, the *CONNECTOR POTENTIAL option cannot be used in conjunction with the *CONNECTOR DAMAGE INITIATION option.
Omit this parameter and use the *CONNECTOR POTENTIAL option in conjunction with the *CONNECTOR DAMAGE INITIATION option to specify a connector damage initiation criterion involving several components of relative motion.
Set this parameter equal to the number of field variable dependencies included in the definition of the connector damage initiation criterion, in addition to temperature. If this parameter is omitted, it is assumed that the connector damage initiation criterion is independent of field variables. See “Specifying field variable dependence” in “Material data definition,” Section 9.1.2 of the ABAQUS Analysis User's Manual, for more information.
First line:
Lower (compression) limiting force or moment. If not specified, no lower limit is used.
Upper (tension) limiting force or moment. If not specified, no upper limit is used.
Temperature.
First field variable.
Second field variable.
Etc., up to five field variables.
Subsequent lines (only needed if the DEPENDENCIES parameter has a value greater than five):
Sixth field variable.
Etc., up to eight field variables per line.
Repeat this set of data lines as often as necessary to define the connector damage initiation limiting values as a function of temperature and other predefined field variables.
First line:
Lower (compression) limiting connector constitutive relative displacement or rotation. If not specified, no lower limit is used.
Upper (tension) limiting connector constitutive relative displacement or rotation. If not specified, no upper limit is used.
Temperature.
First field variable.
Second field variable.
Etc., up to five field variables.
Subsequent lines (only needed if the DEPENDENCIES parameter has a value greater than five):
Sixth field variable.
Etc., up to eight field variables per line.
Repeat this set of data lines as often as necessary to define the connector damage initiation limiting values as a function of temperature and other predefined field variables.
First line:
Relative equivalent plastic displacement/rotation at which damage will be initiated.
Leave blank if the COMPONENT parameter is specified.
Otherwise, mode-mix ratio. See “Mode-mix ratio” in “Connector plastic behavior,” Section 17.2.6 of the ABAQUS Analysis User's Manual, for information on how this quantity is defined.
Relative equivalent plastic displacement/rotation rate.
Temperature.
First field variable.
Second field variable.
Etc., up to four field variables.
Subsequent lines (only needed if the DEPENDENCIES parameter has a value greater than four):
Fifth field variable.
Etc., up to eight field variables per line.
Repeat this set of data lines as often as necessary to define the connector damage initiation criterion as a function of mode-mix ratio, equivalent plastic motion rate, temperature, and other predefined field variables.