Contact Parameters–Local Pair Overrides dialog box (Multiphysics)

Name	Sets the name of the modeling object.
Label	Sets a unique numerical identifier for the modeling object.
Primary Parameters (BCTPARM
Contact Penetration Tolerance	Lets you specify the contact penetration tolerance.This option corresponds to the PTOL field in the BCTPARM bulk data entry.
Initial Penetration / Gap	Controls the definition of the initial gap or penetration of the generated contact elements.Calculate from geometryEvaluates contact exactly as the geometry is modeled, though corrections may be necessary for gaps or penetrations.Ignore penetration/Use gapsResets penetrations to a new initial condition in which there is no interference.Set to zeroResets both gaps and penetrations to a new initial condition in which there is no interference.This option corresponds to the INIPENE field in the BCTPARM bulk data entry.
Open Contact Stiffness Scale Factor	Lets you specify the open contact stiffness scale factor.This option corresponds to the OPNSTF field in the BCTPARM bulk data entry.
Open Gap Tolerance Scale Factor	Lets you specify the open gap tolerance scale factor.This option corresponds to the OPNTOL field in the BCTPARM bulk data entry.
Closed Gap Tolerance Scale Factor	Lets you specify the closed gap tolerance scale factor.This option corresponds to the GAPTOL field in the BCTPARM bulk data entry.
No Separation Contact Option	Controls if inactive contact elements remain inactive when contact stiffness is recomputed in a consecutive nonlinear iteration.Use GAPTOLInactive elements remain inactive when the gap value is greater than the Closed Gap Tolerance Scale Factor value.Use OPNSTF, OPNTOL and GAPTOLInactive elements remain inactive when the gap value is greater than the Closed Gap Tolerance Scale Factor value. The open contact stiffness is applied when the gap value is greater than the Open Gap Tolerance Scale Factor value but less than the Closed Gap Tolerance Scale Factor value.This option corresponds to the NOSEP field in the BCTPARM bulk data entry.
Geometry Update Tolerance	Lets you specify the geometry update tolerance.This option corresponds to the GUPTOL field in the BCTPARM bulk data entry.
Critical Slip	When Tangential Stiffness Selection is set to Adaptively Modified at Every Iteration, lets you specify the critical slip value.This option corresponds to the SCRIT field in the BCTPARM bulk data entry.
Interface Behavior	Lets you specify the interface behavior between the source and target region.This option corresponds to the INTRFC field in the BCTPARM bulk data entry.
Secondary Parameters (BCTPARM
Penalty Normal Direction	Lets you specify the penalty factor for the normal direction.This option corresponds to the PENN field in the BCTPARM bulk data entry.
Penalty Tangential Direction	Lets you specify the penalty factor for the tangential direction.This option corresponds to the PENT field in the BCTPARM bulk data entry.
Penalty Factor Units	Lets you control the units in which you define the Penalty Normal Direction and Penalty Tangential Direction values. This affects how the software calculates the contact element stiffness.This option corresponds to the PENTYP field in the BCTPARM bulk data entry.
Scale Automatically Calculated Penalty Factors	Lets you specify a scale factor to apply to the stiffness of specific contact pairs if convergence issues occur.This option corresponds to the AUTOSCAL field in the BCTPARM bulk data entry.
Tangential Penalty Scale Factor	If you do not specify a value for the Penalty Tangential Direction option, you can use this option to scale up or down the tangential penalty factor that the software calculates automatically. You can use this option to scale the stiffness of specific contact pairs if convergence issues occur.This option corresponds to the TANSCL field in the BCTPARM bulk data entry.

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Contact Parameters–Local Pair Overrides dialog box (Multiphysics), Simcenter 3D 2021.1 Series

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