For static, nonlinear, frequency, and buckling studies, a free interaction does
not impose any restrictions on the relative motion between the components. For thermal
studies, the program prevents heat flow due to conduction through contacting areas. For
static and nonlinear studies, the applied loads can cause interference of components or
bodies.
Applying a free interaction at a global-level or component-level can reduce the
solution time if the applied loads do not cause interference. However, the results are
invalid if the applied loads cause interference.
Do not use this option for structural problems unless you are absolutely sure
that interference will not occur.
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| You get wrong results if loads cause objects to
interfere. |
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| Objects do not interfere during loading. |
