Edge-face 1D connections

To connect a set of edges to a set of faces with a glue-like connection, use the Edge to Face (geometry-based) or Element Edge to Element Face (FE-based) connection type in the 1D Connection dialog box. For example, you can create an Edge to Face connection to connect meshes in a T-junction configuration, such as to attach a fin or a stiffener to a surface.

Note:

The software does not modify the mesh on either the source (edge or element edge) or target (face or element face).

Edge to Face connections

With the Edge to Face type of 1D connection, you can specify the elements that the software creates to connect the elements along the source edge to the elements on the target face. The types of elements that you can select depend on your specified solver. For example, if you are using Nastran, you can select from the list of available 1D elements, such as RBE2 elements, to connect the selected edge to the selected face. You can then use any of the available spider-like elements, such as RBE3 elements, to tie the projected nodes to the nodes on the mesh on the target face.

Note:

As an alternative to using the Edge to Face connection type to connect an edge to a face, you can use the Stitch Edge command and choose the Manual Edge to Face method. This ensures that the source and target meshes share nodes at the edge-face junction. For more information, see Stitching edges.

The Stitch Edge command is available only for bodies within a FEM. It is not supported for component FEMs within an assembly FEM.

Element Edge to Element Face connections

Unlike the other 1D connection types, Element Edge to Element Face connections always use predetermined element types to create a glue connection between edges and faces.

• If you are using the Nastran solver, the software projects RBE2 elements from the selected element edges to the selected element faces. It then uses RBE3 spider elements to tie the projected nodes from the element edges to nodes on the element faces. The mesh recipe and meshes are listed in the Simulation Navigator as shown. 1D Collectors RBE2 Collector connection_recipe_1_mesh RBE3 Collector connection_recipe_1_spider Connection Collectors Connections connection_recipe_1**(A) projected RBE2 elements; (B) spider elements; (C) the mesh recipe**

• For all other solvers, the software ties the selected edges to the faces using rigid links and multi-point constraints (MPCs).

How do I

Create a node-to-node connection

Create an element edge to element face connection

Create a point-to-point connection

Create a point-to-edge connection

Create a point-to-face connection

Create an edge-to-edge connection

Create an edge-to-face connection

Create a face-to-face connection

Learn more

1D Connection

Point-to-point and node-to-node connections

Spider element connections

Working with RBE2 and RBE3 spider elements

1D mesh to face connections

Understanding Samcef RBE and MEAN elements (Simcenter Samcef)

Quick links

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

Browse Simcenter 3D help by product area

Edge-face 1D connections, Simcenter 3D 2021.1 Series

© 2020 Siemens

window.mainLanguage="en_US"

window.delivId=""

window.projectId=""

MathJax.Hub.Config({ TeX: { extensions: ["autoload-all.js"] }, tex2jax: { displayMath: [ ] }, "SVG": { scale: 125 } });