CFAST/CWELD Connection Parameters dialog box

Modeling Object
Name	Defines the name of the modeling object.
Label	Specifies a unique numerical identifier for the modeling object.
Properties
Solution Termination	Controls when Nastran stops the solve process. Select Run Solution to Completion to allow the solution to continue until the solve is complete. Select Stop Solution After Connector Element Generation to terminate the solution after Nastran generates the CFAST or CWELD elements. Corresponds to the CHKRUN field on the SWLDPRM bulk data entry.
Number of Times to Relocate GS	Specifies the number of times Nastran can relocate point GS if the projection to patches A and/pr B is not found. Corresponds to the GSMOVE field on the SWLDPRM bulk data entry.
Allowable Projection Angle from GS	Specifies the allowable angle between the normal projection from point GS to patch A, and the normal projection from point GS to patch B. Nastran only creates the CFAST or CWELD elements when the angle is less than this specified value. Corresponds to the GSPROJ field on the SWLDPRM bulk data entry.
Allowable Distance from GS	Specifies the allowable distance from point GS to the intersection of patches A and B. Nastran only creates the CFAST or CWELD elements when the distance is less than this specified value. Corresponds to the GSTOL field on the SWLDPRM bulk data entry.
Number of Times to Reduce Weld Diameter	Specifies the number of times Nastran can reduce the diameter of the weld in half if the diameter fails to project entirely onto patches A and/or B. This reduced diameter only applies to connection point creation. Nastran uses the original diameter to calculate the stiffness of the CFAST or CWELD. element. Corresponds to the NREDIA field on the SWLDPRM bulk data entry.
Projection Tolerance	Calculates the tolerance the software uses to determine whether a projected point located outside of the 2D elements in patch A or B is used. The tolerance = the specified Projection Tolerance * (the size of the 2D element). Corresponds to the PROJTOL field on the SWLDPRM bulk data entry.
Write Diagnostic Information to F06 File	Specifies whether to write diagnostic information to the F06 file. Specify a value of 0 if you do not want to write diagnostic output to the F06 file. Specify a value of 1 if you want to write diagnostic output to the F06 file. Corresponds to the PRTSW field on the SWLDPRM bulk data entry.
Maximum Angle for Patch Generation	Specifies the maximum angle in degrees between the normal of the mastwe weld element and the normal of any adjacent elements to be considered part of the A and B side patches. Note: Increasing this angle may generate patches which are irregular and do not represent a good weld connection. Corresponds to the ANGPAT field on the SWLDPRM bulk data entry.
Handling of GA or GB Point Projection Failure	Determines if Nastran creates the CFAST or CWELD connection when the GHA or GHB points to not project onto an element in the patch. Select CFAST/CWELD Creation Fails if Any Points Do Not Project if you do not want Nastran to create the CFAST or CWELD elements if any of the points fail to project onto any element in the patch. Select Create CFAST/CWELD If At Least One Point Projects if you want Nastran to create the CFAST or CWELD element if at least one of the GHA or GHB points project onto an element in the patch. Note: With this option, the GHA or GHB points that do not project onto the patch are still associated with the master element. Corresponds to the GHOFF field on the SWLDPRM bulk data entry.
Displacement Calculation at GA/GB	Determines whether Nastran calculates the displacements at GA/GB. Select Always Calculate Displacements if you want to calculate the displacements for GA/GB in all cases. If GA/GB are not explicitly defined, Nastran only writes the displacements to the F06 file. Select Only Calculate Displacements When GA/GB Are Nodes if you want Nastran to calculate the displacements only when GA/GB are actual nodes in the model. Select Never Calculate Displacements if you do not want Nastran to calculate the displacements for GA/GB in all cases. Corresponds to the DISPRT field on the SWLDPRM bulk data entry.

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CFAST/CWELD Connection Parameters dialog box, Simcenter 3D 2021.1 Series

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