Checking Initial Contact Conditions Prior to Solving - Lesson 3 

This video explores how to use the Contact Tool under the connections branch before solving to check initial contact conditions and avoid costly rework time fixing contact after a failed solve.
For complex models, involving many contact pairs, even if the contact pairs are all linear, a static solution still might fail if the initial contact conditions are not set up properly.  Engineers need to be extra cautious when setting up the contacts between the parts, generating the desired mesh, setting up boundary conditions, applying loads, and finally solving it.  And after solving such complex problems, what if it fails due to improper contact with bodies having rigid-body motion? Could that be avoided before investing computational time? Is there a way to check how the contacts are defined before solving them? 
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0:00 - Introduction
1:40 - Discussion on contact issues arising from geometry
2:41 - Discussion on contact issues arising from rigid-body motion
3:42 - Discussion on using Contact Tool under the connections branch
7:47 - Demonstration of checking initial contact status in Mechanical
13:05 - Discussion on resolving geometric gaps in assemblies
13:39 - Demonstration of using frictional contact Interference Treatment in Mechanical
13:55 - Demonstration of increasing bonded contact Pinball Radius in Mechanical

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