You can create a group from the Groups section in the action bar or by right-clicking on a mesh in the tree and selecting Create Group. You can also create groups by using the context menu in the support field for any action for which you can select a group. Groups that you create from the Groups section appear in the Groups container under the mesh representation in the tree. These groups are not specific to a single meshed part and can contain mesh entities belonging to several mesh parts. Groups that appear in the Groups container are available across the assembly and can be used to perform global analyses on the model or to filter analysis images. In contrast, groups that you create by right-clicking on a mesh in the tree appear in the Mesh container under the mesh representation in the tree. These groups are specific to a single meshed part and can contain mesh entities belonging only to that meshed part. Groups that appear in the Mesh container are available to that meshed part or assemblies that include that part. You can select either groups in the Groups container or groups under a meshed part as the support for features such as boundary conditions, loads, and contact. The groups are available for selection only if all of the contained items are valid supports. For example, a group that contains nodes is not available for selection if edges are the required support type. When you create a proximity group in the Groups container, you can inadvertently select mesh entities from multiple meshed parts. This can lead to errors if you use the group to define contact surfaces. Therefore, you should create proximity groups under the meshed part to specify regions that are used to define contact surfaces. | |||||||||||