of 64
All materials on our website are shared by users. If you have any questions about copyright issues, please report us to resolve them. We are always happy to assist you.
Related Documents
  Additional Features Lecture 7  L7.2 Solving Contact Problems with New Capabilities in Abaqus Overview ã Contact Constitutive Models ã Pressure-Overclosure ã Friction ã Tie Constraints ã Rigid surfaces  Pressure-Overclosure Models  L7.4 Solving Contact Problems with New Capabilities in Abaqus Pressure-Overclosure Models ã The default  physical pressure- overclosure model is “hard” contact ã  Although this model is not always strictly enforced in the numerical solution due to: ã Softening in the numerical constraint method ãExample: Penalty method (finite rather than ∞ constraint stiffness)ã Convergence tolerances for the Newton iterations ã Example: Accept as converged despite very small negative contact pressure h < 0  h = 0 No penetration; no constraint required Constraint enforced; positive contact pressure -  h p , contact pressure Any pressure possible when in contact No pressure h , penetration Idealized “hard” pressure vs. penetration behavior 
We Need Your Support
Thank you for visiting our website and your interest in our free products and services. We are nonprofit website to share and download documents. To the running of this website, we need your help to support us.

Thanks to everyone for your continued support.

No, Thanks