Surface to Surface Contact
Facts about surface to surface contact:
More general than node to node and node to surface
contacts. Suitable for complex contacts with general loading.
Does not require compatible mesh between source
and target faces.
Allows faces only as source and target entities.
NOTE:
The program selects the candidates for source and target faces internally.
They are defined using the Set 1 and
Set 2 entities in the Contact
Set PropertyManager.
In most cases, it gives more accurate results
but requires more time and resources.
Not recommended when the area of contact between
a source face and target face becomes too small or reduces to a line or
point during deformation. In such cases, use the Node
to Surface option.
This contact formulation is available with the
No
Penetration contact type for static studies. It prevents interference
between the source and target faces during loading but allows them to
move away from each other to form gaps. For thermal studies, this option
is available with the Thermal
Resistance contact type.
For nonlinear studies, a surface to surface contact
option is available in the Contact Set
PropertyManager. Creating a fine mesh in the contact area improves
the results for this option. You can still use the other contact options,
Node to Node and Node
to Surface under Advanced options
in the Contact Set PropertyManager.
NOTE:
The same approach
is used for draft quality mesh, but speed gain in simulation is
more prominent when using high quality mesh.