Importing and exporting spot weld connections using wcd format

You can easily transfer and manage spot weld information within CAE models by importing and exporting universal spot weld connections using the weld connection definition (.wcd) file format. In the .wcd file, commented lines denoted by # contain the name and units of each spot weld connection. The information for each location within a weld is stored in a separate line using the format below.

Before exporting, check that each spot weld connection has a status of Not realized or Up-to-date. Connections that have a status of Invalid cannot be exported and must be eddied until their status is Not realized or Up-to-date.

When you export a spot weld connection, the Information window displays potential problems such as whether a location has a failed projection, the physical properties of the flanges cannot be determined, or if the connection is invalid.

Format:

1	2	3	4	5	6	7	8	9	10	11
TYPE	ID	DIAM	X	Y	Z	PID1	PID2	PID3	PID4	MAT

Fields:

Field	Contents
TYPE	Type string, which you can only define using GRID. The software ignores any line not beginning with GRID.
ID	Identification number of the spot weld. ID is not used when importing a .wcd file in Simcenter 3D.
DIAM	Diameter of the spot weld. On import, If DIAM is greater than 0.0, the software creates the spot weld diameter with Defined by set to User in the Spot Weld Connection dialog box. Otherwise, the software sets Defined by to Formula.On export, if you set diameter Defined by to Coefficient or Table Defined in the Spot Weld Connection dialog box, the software exports the connection with DIAM blank.
X, Y, Z	X, Y, and Z coordinates of each location within the weld definition.The software exports coordinates of the weld locations regardless of whether any of the weld locations fail to project.
PID	Flange property identification number for each flange, which can define up to four flanges. PID3 and PID4 are optional.If a weld location fails to project, the software exports the weld location with PID blank.
MAT	Material property assigned to the spot weld (optional).

Where do I find it?

Import Connections command

Application	Pre/Post
Prerequisite	A FEM file as the work part and displayed part
Command Finder	Import Connections

Export Connections command

Application	Pre/Post
Prerequisite	A FEM file as the work part and displayed part
Command Finder	Export Connections

Learn more

Spot weld universal connections

Seam weld universal connections in the Nastran environment

Spot weld universal connections in the LS-DYNA environment

Quick links

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

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Importing and exporting spot weld connections using wcd format, Simcenter 3D 2021.1 Series

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