Defining parameters for glue conditions

You can create additional glue parameters in these ways:

• Create a Glue Parameters–Linear Global modeling object to control the behavior of the glue algorithm for glue definitions in a given solution. To assign this modeling object to the solution, use the Global Glue Parameters option on the Case Control page of the Solution dialog box to assign a Contact Parameters–Linear Global modeling object to your solution.

• Create a Glue Parameters–Linear Pair Override modeling object to locally override a subset of the global glue parameters for a given glue definition. To assign this modeling object to the solution, use the Override Parameters option in the surface-to-surface or edge-to-surface gluing dialog box. This allows you to selectively change the values of certain parameters in selected pairs of glued surface, or pairs of edges and surface.

For more information, see Surface-to-surface gluing (Simcenter Nastran, Simcenter 3D Multiphysics) as well as Surface-to-Surface and Edge-to-Surface Gluing in the Simcenter Nastran User's Guide.

Understanding the glue algorithms

The options in the Glue Formulation list let you control the glue algorithm that Simcenter Nastran uses when you solve your model.

• With the Weld-Like Connection option, the software uses a weld-like glue algorithm.

• With the Normal and Tangential Springs option, the software uses a spring-like glue algorithm

A surface-to-surface or edge-to-surface glue condition on non-coincident shell or solid faces can introduce artificial rotational energy into the solution. Generally, the problem occurs because the spring-like glue elements do not transfer moments at the glue interface when glued faces are non-coincident and/or when loads are not normal to the glued faces. This is particularly noticeable in a normal mode solution when modes are found that contain an artificial rotational energy due to the glue condition. The Weld-Like Connection algorithm eliminates this artificial rotational energy.

In most cases, the Weld-Like Connection algorithm represents the connection stiffness more accurately than the spring-like glue algorithm because it transfers moments at the glue interface.

For more information, see Surface-to-Surface and Edge-to-Surface Gluing in the Simcenter Nastran User's Guide and BGPARM in the Simcenter Nastran Quick Reference Guide.

Where do I find it?

• Choose Home tab→Properties group→Modeling Objects and then choose Glue Parameters–Linear Global or Glue Parameters–Linear Pair Override from the Type menu.

• Choose Insert→Modeling Objects and then choose Glue Parameters–Linear Global or Glue Parameters–Linear Pair Override from the Type menu.

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)

Previewing contact and glue element locations (Simcenter Nastran)

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

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

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

Browse Simcenter 3D help by product area

Defining parameters for glue conditions , 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 } });