Workbench Mechanical - Introduction to Contact
Workbench Mechanical - Introduction to Contact
Workbench Mechanical - Introduction to Contact
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<strong>Workbench</strong> <strong>Mechanical</strong> - <strong>Introduction</strong> <strong>to</strong> <strong>Contact</strong><br />
... <strong>Contact</strong> Formulations<br />
Training Manual<br />
• One additional note worth mentioning is that contact is detected<br />
differently, depending on the formulation used:<br />
– Pure Penalty and Augmented Lagrange Formulations use integration<br />
point detection. This results in more detection points (10 in this example<br />
on left)<br />
– Normal Lagrange and MPC Formulation use nodal detection (normal<br />
direction from Target). This results in fewer detection points (6 in the<br />
example on right)<br />
– Nodal detection may handle contact at edges slightly better, but a<br />
localized, finer mesh will alleviate this situation with integration point<br />
detection.<br />
Integration Point Detection<br />
Nodal Detection<br />
ANSYS, Inc. Proprietary<br />
© 2009 ANSYS, Inc. All rights reserved.<br />
3-9<br />
April 30, 2009<br />
Inven<strong>to</strong>ry #002659