Workbench Mechanical - Introduction to Contact
Workbench Mechanical - Introduction to Contact
Workbench Mechanical - Introduction to Contact
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
<strong>Workbench</strong> <strong>Mechanical</strong> - <strong>Introduction</strong> <strong>to</strong> <strong>Contact</strong><br />
... <strong>Contact</strong> Formulations<br />
• Another available option is Lagrange multiplier algorithm:<br />
Training Manual<br />
– The Normal Lagrange algorithm adds an extra degree of freedom (contact<br />
pressure) <strong>to</strong> satisfy contact compatibility. Consequently, instead of<br />
resolving contact force as contact stiffness and penetration, contact<br />
force (contact<br />
pressure) is solved for explicitly as an extra DOF. F normal = DOF<br />
• Enforces zero/nearly-zero penetration with pressure DOF<br />
• Does not require a normal contact stiffness (zero elastic slip)<br />
• Requires Direct Solver, which can be more computationally expensive<br />
F<br />
ANSYS, Inc. Proprietary<br />
© 2009 ANSYS, Inc. All rights reserved.<br />
3-7<br />
April 30, 2009<br />
Inven<strong>to</strong>ry #002659
Change language