Defining parameters for contact conditions (Simcenter Nastran)

The type of Contact Parameters modeling object you define depends upon whether you are creating a linear or nonlinear solution.

Contact parameters for linear solutions and Multiphysics Multi-Step Nonlinear solutions

The two types of contact parameters modeling objects for linear solutions allow you to specify additional options to control the contact algorithm the software uses in Simcenter Nastran SOL 101, 103, 111, and 112 analyses and in Multi-Step Nonlinear SOL 401 analyses. These options correspond to the fields on the Simcenter Nastran BCTPARM bulk entry.

• Create a Contact Parameters–Global Pair modeling object to define surface-to-surface contact parameters for all contact definitions in a given solution. You use the Global Contact Parameters option on the Case Control page of the Solution dialog box to assign a Contact Parameters–Global Pair modeling object to the solution.

• Create a Contact Parameters–Local Pair Override modeling object to locally override a subset of the global contact parameters for a given surface-to-surface contact definition. The parameters you can adjust locally include Penalty Normal Direction and Initial Penetration/Gap. You use the Local Contact Pair Parameters option in the Surface-to-Surface Contact dialog box to assign a Contact Parameters–Local Pair Override object to a contact definition. This allows you to selectively change the values of certain parameters on a contact pair-by-contact pair basis.

Contact parameters for multi-step nonlinear kinematics solutions

You can use a Contact Parameters – Multi-Step Nonlinear Kinematics Pair modeling object to define parameters such as contact surface, penetrations and gaps, friction, regularization, and damping models, when you create a Surface-to-Surface Contact or Edge-to-Edge Contact simulation object in a Simcenter Nastran multi-step nonlinear kinematics analysis (SOL 402).

When you solve your model, the software uses the Contact Parameters – Multi-Step Nonlinear Kinematics Pair modeling object to create a Simcenter Nastran BCTPARA2 bulk entry in your Simcenter Nastran input file.

Contact parameters for advanced nonlinear solutions

You can use a Contact Parameters – Advanced Nonlinear modeling object to define parameters, such as the contact algorithm, when you create a Surface-to-Surface Contact simulation object in a Simcenter Nastran advanced nonlinear analysis (SOL 601, 106, SOL 601, 129, or SOL 701).

When you solve your model, the software uses the Contact Parameters – Advanced Nonlinear modeling object to create a Simcenter Nastran BCTPARA bulk entry in your Simcenter Nastran input file.

Where do I find it?

Application	Pre/Post
Prerequisite	A Simulation file as the work part and displayed partSimcenter Nastran or Multiphysics as the specified solverSupported solution type
Command Finder	Modeling Objects
Location in dialog box	Type list→appropriate Contact Parameters object

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 glue conditions

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 contact conditions (Simcenter Nastran), 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 } });