Weld Row mesh controls

The Weld Row type of Mesh Control produces a structured (mapped) row of quadrilateral elements along a set of connected edges that define the location of a weld. With the Weld Row type, you can create one or more layers of structured elements at a specified offset into the face or faces that are attached to the selected edges. This allows you to simulate the footprint of a weld in your 2D mesh along with the equivalent plate thickness in that region without subdividing the underlying faces.

You can only use the Weld Row type in a free (unstructured) mesh of quadrilateral or triangular elements that were created with the 2D Mesh command. Weld Row mesh controls are not supported in 2D structured meshes that were created with the 2D Mapped Mesh command.

When you create a Weld Row mesh control within a triangular surface mesh or on the surface of a model that you plan to mesh with tetrahedral elements, the software generates a structured mesh of triangular elements.

Note:

The Weld Row type is primarily intended to be used in the context of a 2D mesh. If you want to use the Weld Row option in a 3D mesh, you should first define the Mesh Control in the context of a 2D seed mesh. Once you generate that seed mesh, you can then create the 3D mesh.

Mesh Collectors for Weld Row elements

When you generate the mesh on a surface that contains a Weld Row definition the software places the mesh in two separate mesh collectors:

• One mesh collector contains all the elements associated with the Weld Row definition.

• One mesh collector contains all the remaining elements in the mesh.

Having the Weld Row elements in a separate collector makes it easier for you to assign different properties to the elements that define the weld, such as a different thickness value to account for the thickness of the weld material. However, the two separate mesh collectors cannot exist independently of each other. For example, you cannot delete one of the mesh collectors associated with the Weld Row definition and still have a valid Mesh Control.

Weld Row example

The following graphic shows an example of a Weld Row mesh control. (1) shows the edges that were selected as the Target Edges along which to define the weld row. The arrows show the two associated faces. (2) shows the 2D mesh the software created, including the structured elements in the region of the Weld Row definition. (3) shows the mesh on the underside of the same surfaces.

Figure 11-1. Weld Row example

Where do I find it?

Application	Pre/Post
Prerequisite	A FEM file as the work part and displayed part
Command Finder	Mesh Control
Menu	Insert→Mesh→Mesh Control

How do I

Create a Weld Row mesh control

Quick links

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

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Weld Row mesh controls, Simcenter 3D 2021.1 Series

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