analysis with the Force on MPC (Multiple point contraint)
Altair EmployeeHi,
i've analized the Bracket at first with Forces direktly on nodes in the body. Everything was done good and i could see strain and stress in Hyperview. Then i've made a new node at the center of tube and connected it (as independent node) with all nodes in the tube (as dependent node). After that i've set a constant Force on the independent Node.But according to picture ''MPC_Hyperview'' nothing (displacement,stress, etc.) ist presented.
Where is my mistake ? as far as i know we use Indpt-node to distribute the force homogen/equal on dpt-nodes.
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Answers
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Hi Mac
did you try increasing the force?
and please confirm that you activated dof1-dof6 when you created RBE2
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Hi tinh,
Thanks for your Answer. Yes, i've activated dof1-dof6 (RBE2 22560 5031 123456). For each element ist written such error ''USER FATAL MESSAGE 9994 (BULKPM), CTETRA with EID=11950 near line 3417 '' in *.bdf data. additionally theres isn't any amount of Displacement, Stress and Strain in the data.
because of huge amount of element i didn't make RBE2 (Indpt-node and their dpt-node) with command 1D -> rigids , but with a special matlab programm. this programm makes MPCs on a Body with *.bdf Format. The Programm hasn't problem. but it makes contact lines between Indp-node and dpt-node as second component. Therefore i've set for that material and Property too.
''misc1'' is Indpt-node and their dpt-node.
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I see, you just remember that rbe2, rbe3, an mpc are not elements, so they have no props and mats. Usualy we put them in separate comps and do not assign card image, 'misc' was generated default by input translator if input deck has no $HM comments, not by matlab.
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