Question

Contact stiffness changes adroitly check for contact separation worknech

Answer 1

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the Best Practices for Specifying Contact Conditions

This section describes some of the practices you should try to keep in mind while defining the properties of the contact conditions for your model.

Mesh Requisites

Selecting Contact Formulation

Overlapping Contact Conditions and Boundary Conditions

Contact Behavior

Initial Contact Tool

Diagnostic Tools, NR Residuals, and Contact Result Trackers

Contact Tool Results

Mesh Requirements

Defining a proper mesh is critical to contact conditions. A well-defined mesh ensures accurate stress measurements at a contact region. Furthermore, a quality mesh is essential for nonlinear contact conditions in order to obtain an accurate solution. This is especially true for curved surfaces. Use local Mesh Controls, such as Proximity Controls and Contact Sizing controls to better ensure mesh quality. Review the Apply Mesh Controls and Preview Mesh section of the Help for more information on this topic.

Selecting Contact Formulation

Mechanical provides the following options for the Formulation property:

Augmented Lagrange

Pure Penalty

MPC (Multi-Point Constraint)

Normal Lagrange

Answer 2

contact behavior........