Innovation Intelligence®

Section 15

Contact Modeling

Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.

Applications | Analysis | Structural | Contact

Feature based contact pair Identification

Automated File based contact creation.

Supports contact definition for Abaqus,

OptiStruct ,ADVC ,Nastran ,Ansys and

Permas .

Contact Modeling

Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.

Feature based contact pair identificationContact pairs either planar / cylindrical / both between bodies within a specified

tolerance can be identified automatically.

Planar Contact Pairs Cylindrical Contact Pairs

Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.

Contact Modeling

Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.

Contact definition between bodies / node sets / element sets / groups can be

defined in a text file (*.dat).

File based contact definition can be imported and contacts will be created

automatically between the specified entities. Node sets / Element sets / Groups

have to be pre-defined before importing the contact definition file.

Contact definition file can be exported from SimLab.

This improves modelling robustness and consistent contact definitions to avoid

errors.

File Based Contact Creation

Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.

Contact definition file template :

File Based Contact Creation

Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.

Surface Based Interaction

Surface Interaction for Contact Analysis can be defined using

Applications | Analysis | Structural | Surface Interaction

Surface Behaviour - No Separation,

Hard, Tabular, Exponential and Gap

Conductance.

Pressure Over Closure

(Pressure vs Over Closure)

Conductance

(Conductance vs Clearance vs

Temperature)

Friction Coefficient

Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.

Surface Interaction

Abaqus Change Friction card supported to vary the friction properties from one

load step to another load step.

Change Friction Option

Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.

Clearance and Interference for contact analysis can be defined using the following

tool. This tool is in

Applications | Analysis | Structural | Press-Fit

Amplitude curve for Abaqus contact interference can be defined.

Press Fit

Copyright © 2012 Altair Engineering, Inc. Proprietary and Confidential. All rights reserved.

• Option to set user desired master and slave surface name is supported.

• This option can be used by right clicking the contact in Lbc tree.

Contact