Ansys Learning Forum › Forums › Discuss Simulation › General Mechanical › ‘Large deflection on’ non-linearity VS ‘frictional/frictionless support or contact’ non-linearity. › Reply To: ‘Large deflection on’ non-linearity VS ‘frictional/frictionless support or contact’ non-linearity.
November 7, 2020 at 3:21 pm
peteroznewman
Subscriber
Array Frictionless support is a linear boundary condition. It works in linear analyses like modal and harmonic response. Nodes on the surface cannot separate in any analysis.
Frictionless contact is a nonlinear contact. Nodes on the surface can separate. ANSYS Mechanical will automatically convert a closed frictionless contact into a frictionless support in a modal analysis, but will ignore an open frictionless contact in a modal analysis. In a Static Structural or Full Transient Structural (not MSUP) the nodes in the contact can open and close as needed during the solution.
Frictionless contact is a nonlinear contact. Nodes on the surface can separate. ANSYS Mechanical will automatically convert a closed frictionless contact into a frictionless support in a modal analysis, but will ignore an open frictionless contact in a modal analysis. In a Static Structural or Full Transient Structural (not MSUP) the nodes in the contact can open and close as needed during the solution.
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