Page 5: GWeld (Generalized Weld)

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  • gweld panel
  • Figure 1 – GWeld Interface

Purpose:

*CONSTRAINED_GENERALIZED_WELD has many variants in LS-DYNA, but this interface is specifically for showing, creating, modifying, and deleting *CONSTRAINED_GENERALIZED_WELD_SPOT cards. Failure parameters can be set as desired and used for the welds being created. Also these parameters can be modified as necessary for each weld.

Controls:

  • rbs Show – Show existing *CONSTRAINED_GENERALIZED_WELD_SPOT entities
  • rb Create – Create new *CONSTRAINED_GENERALIZED_WELD_SPOT entities
  • rb Modify – Modify existing *CONSTRAINED_GENERALIZED_WELD_SPOT entities
  • rb Delete – Delete existing *CONSTRAINED_GENERALIZED_WELD_SPOT entities

For Show, Modify, and Delete, the Entity Operation Interface is displayed in the secondary controls area. For Create, the General Selection Interface is displayed in the secondary controls area.

  • Label – Select label type

ViewPara

 Click to view and modify weld parameters

  • CID: Enter coordinate system ID
  • FILTER:Enter number of force vectors saved for filtering
  • WINDOW: Enter time window for filtering
  • NPR: Enter number of individual nodal pairs
  • NPRT:Print option for RBDOUT (see LS-DYNA keyword manual for details)
  • TFAIL: Enter failure time for constraint set
  • EPSF: Enter effective plastic strain at failure
  • SN: Enter normal force at failure, only for brittle failures
  • SS: Enter shear force at failure, only for brittle failures
  • N: Enter exponent for normal force, only for brittle failures
  • M: Enter exponent for shear force, only for brittle failures
  • WID – Enter genweld optional ID
  • NSID – Enter Node Set ID

All

 Select all *CONSTRAINED_GENERALIZED_WELD_SPOT entities

None

 Deselect all *CONSTRAINED_GENERALIZED_WELD_SPOT entities

Rev

 Reverse selection

AList

 Select all entities within the selected range (Only applies when there are 20+ entities)

Apply

 Apply entries for creation/modification or selections for deletion

Done

 Exit Constrained Generalized Weld Spot Data interface

  • Click item from list to select (1)


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