Checking the association of nodes to geometry

Use the Check Association command to verify that the nodes in your model are associated to the underlying geometry. Nodes that are not associated to the underlying geometry can cause issues, for example, if your model contains geometry-based boundary conditions.

You can use options in the Check Node Association dialog box to display:

• Edges and faces that have nodes that are only partially associated to them.

• Orphan nodes on the exterior of the mode, that are not associated with any geometry.

• Edges or faces that do not have associated nodes.

• Nodes that are fully associated to selected faces or edges.

Nodes may become disassociated from geometry when:

• You use mesh morphing commands to modify a mesh.

• You use manual element commands, such as Element Delete and Element Modify Connectivity.

Where do I find it?

Application	Pre/Post
Prerequisite	A FEM or Simulation file as the displayed part and work part
Command Finder	Check Association
Menu	Analysis→Finite Element Model Check→Check Association

Learn more

Checking your finite element model

Checking for free and non-manifold element edges

Aligning the first edges of 2D elements

Checking and orienting the directions of 1D elements

Checking and orienting the normals of 2D elements

Checking and orienting the normals of 3D element faces

Checking aerodynamic panel meshes

Checking for duplicate elements and nodes

Detecting interference and clearance issues between faces

Checking CAE model consistency

Checking the completeness of your model prior to a solve

Computing mechanical loads

Quick links

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Checking the association of nodes to geometry, Simcenter 3D 2021.1 Series

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