PRIMER 22.1

Contact Penetration Checking

What Checking Does
Plotting errors
Settings.. . Controlling plots
Levels... Setting #contour bands
Displaying local errors
Creating null beams on crossed edges
LIST_ERRORS : Error output listings
Options...
Notes on Contact Penetration Checking

PRIMER can check for and display initial penetrations and crossed edges in contact surfaces. It can also be used to find which nodes will be tied (or not tied) by *CONTACT_TIED.

This capability can be invoked from three separate locations:

CHECK (from Tools ) > RULES
CONTACT > PEN_CHECK
CONTACT > CREATE/EDIT > PEN_CHECK

However the routines called are common to all cases, and their detailed use is described here.

Fixing contact penetrations can be sound in Contact Penetration Fixing

In this example a model contains two parts:

Part 1 (pink) is a single shell.
Part 2 (green) is a block of solids

A contact surface ( AUTOMATIC SURFACE TO SURFACE ) between the two parts is defined:

Part 2 is the SURFA (tracked) side of a contact
Part 1 is the SURFB (reference) side

The two parts intersect by a small amount, as is clearly visible here.

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