Surface-to-surface gluing (Simcenter Nastran, Simcenter 3D Multiphysics)

Use Surface-to-Surface Gluing to connect two surfaces to prevent relative motion in all directions. A Simcenter Nastran glue connection is a simple and effective method to join dissimilar meshes.

The surface-to-surface gluing regions consist of shell elements and solid element faces. You can define face pairs manually or automatically.

When you solve or export your model, the options in the Surface-to-Surface Gluing dialog box define a BGSET bulk data entry in your Simcenter Nastran input file. For more information, see Surface-to-Surface Gluing in the Simcenter Nastran User's Guide.

Supported analysis types

Surface-to-surface gluing is available for all structural Simcenter Nastran solution sequences except for SOL 701. It is not supported in axisymmetric solutions.

Using a Glue Parameters modeling object to control the glue algorithm

If you include a surface-to-surface gluing simulation object in your solution, you can use the options in the Glue Parameters - Local Pair Overrides and Glue Parameters - Global Pair Overrides dialog boxes to adjust Simcenter Nastran's glue algorithm. See Defining parameters for glue conditions for more information.

Sliding glue

Use the Sliding Formulation option in the Glue Parameters - Local Pair Overrides and Glue Parameters - Global Pair Overrides dialog boxes to specify whether you want the glue connection to be able to slide during the analysis. The software preserves any gaps between the glue edges and surfaces as sliding occurs. Sliding glue includes a normal stiffness but no tangential stiffness.

Note:

Sliding Formulation is available when the Glue Formulation option is set to Normal and Tangential Springs.

When you include glue definitions in your solution, the software assumes that the displacements are small. As a consequence, the software does not account for rotations and only supports infinitesimal sliding. If you use the Sliding Formulation in a solution in which you also select the Large Displacements option (Solution Control tab, Solution dialog box), the software updates the orientations of the glue definition when sliding occurs but does not update the glue pairing.

You can use the Sliding Distance option on the Glue Result page in the Structural Output Requests modeling object dialog box to request that the software output the tangential distance traveled by the nodes on the source and target faces relative to each other.

Where do I find it?

Application	Pre/Post
Prerequisite	An active Simulation file with Simcenter Nastran or Simcenter 3D Multiphysics as the specified solver
Command Finder	Surface-to-Surface Gluing
Simulation Navigator	Under the active solution, right-click Simulation Objects→New Simulation Object→Surface-to-Surface Gluing

How do I

Define surface-to-surface contact

Define surface-to-surface gluing (Simcenter Nastran)

Define edge-to-surface gluing

Create an axisymmetric nonlinear contact

Learn more

Contact and glue overview (Simcenter Nastran, Simcenter 3D Multiphysics)

Defining parameters for contact conditions (Simcenter Nastran)

Defining parameters for glue conditions

Previewing contact and glue element locations (Simcenter Nastran)

Surface-to-Surface Contact (Simcenter Nastran, Simcenter 3D Multiphysics, Abaqus, ANSYS)

Edge-to-Edge Contact (Simcenter Nastran, Simcenter 3D Multiphysics)

Internal edges for source and target regions

Edge-to-Surface Gluing (Simcenter Nastran)

Controlling the stiffness of edge-to-surface glue (Simcenter Nastran)

Edge-to-Edge Gluing (Simcenter Nastran, Simcenter 3D Multiphysics)

Advanced nonlinear contact for axisymmetric elements (Simcenter Nastran)

Automatic face pairing

Quick links

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

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Surface-to-surface gluing (Simcenter Nastran, Simcenter 3D Multiphysics), Simcenter 3D 2021.1 Series

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