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create forced motion

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hello, I´m modelling a 3 point bending test of a beam in hypermesh/optistruct. The bending is acted by a cilindrical tool where is applied 1 KN force. It´s important in the loadstep that the tool doesn´t touch the profile, so I have to create something like a motion which allows the tool to contact the beam and then bend it.

how can I set it?


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Hi prakash,


I´m using the function CONTACT with the option STICK, works well if I put the tool in touch with the profile, but in that whay I have always the problem of the stiffness during the torsion (I´m trying a different way to solve that problem with MPC).


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