Page 5: SpWeld (Spot Weld)

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  • spweld panel
  • Figure 1 – SpWeld Interface

Purpose:

This interface is used for showing, creating, modifying, and deleting *CONSTRAINED_SPOTWELD cards in LS-DYNA.

Controls:

  • rbs Show – Show existing *CONSTRAINED_SPOTWELD entities
  • rb Modify – Modifying *CONSTRAINED_SPOTWELD values
  • rb Create – Create new *CONSTRAINED_SPOTWELD entities
  • rb Delete – Delete *CONSTRAINED_SPOTWELD
  • rb CDelete – Check and delete invalid *CONSTRAINED_SPOTWELD

For Show, Modify, Delete, and CDelete, the Entity Operation Interface is displayed in the secondary controls area. For Create, the bottom panel is as shown in Figure 2 below.

  • Label: Set current entity label type

  • WID: Enter spot weld optional ID
  • cbc ShowPara – Show spot weld parameters in entity list
  • cbc N1 – Enter Node ID 1
  • cb N2 – Enter Node ID 2

All

 Select all Constrained Spotweld

None

 Deselect all Constrained Spotweld

Rev

 Reverse selection Constrained Spotweld

Alist

 All selected list Constrained Spotweld

Apply

 Apply create, delete, and modify

Cancel

 Cancel modify

Done

 Exit Constrained Spotweld interface

  • Click item from list to select (1)


Bottom Panel:

  • spweld bottom panel
  • Figure 2 – Create Bottom Panel
  • SN: Normal force at spotweld failure (optional)
  • SS: Shear force at spotweld failure (optional)
  • N: Exponent for normal spotweld force (optional)
  • M: Exponent for shear spotweld force (optional)
  • TF: Failure time for nodal constraint set
  • EP: Effective plastic strain at failure


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