How to connect Solid and Shel Geometry in Ansys in a Proper Way

Descriptions of issue in creating smooth behavior betwen Solid and Shell/Beam mesh
👉Details in description👇
⚙ Description:
In reason that Solid Elements in most cases have 3 Degree of Freedom (DoF) - only translational, and Shell/Beam Elements have 6 dof (3 translational + 3 rotational) without proper communication betwen those types of bodies and elements can present some issues. If you directly connect, with merge nodes or tha same way - you will obtain a lack in rotational freedom. So video desribe not only fact of problem but some proper way to connect it.
Everithing is shown with Ansys Mechanical (Ansys Workbench). Issue - can present at any FEM/FEA Software. Methods of solving - have similarities, but list of UI tools can be different
Quick Start tutorial can be found here: • Quick Start with Ansys...
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Пікірлер: 12

  • @tuomio5043
    @tuomio504310 ай бұрын

    Thank you! I never realized that the contact groups had their own details menus! This was a lifesaver

  • @t-works3643
    @t-works3643Ай бұрын

    Thanks man!

  • @naldofrasco1467
    @naldofrasco1467 Жыл бұрын

    It was informative to see the effect of the shell DOF effect when connecting via a cylindrical surface vs a straight edge. Especially understanding the little nuances when considering the not so obvious like the effect of buckling on the cylinder shell to solid interface. Thank you.

  • @FEAry_tales

    @FEAry_tales

    Жыл бұрын

    Thanks for reply. I will show some additional examples later

  • @mehmetmercan8087
    @mehmetmercan8087 Жыл бұрын

    Thank you. The video is so helpful. I appreciate.

  • @yusufyetgin7680
    @yusufyetgin76807 ай бұрын

    Good lesson!

  • @tuomio5043
    @tuomio50439 ай бұрын

    What will happen if a shell element with a large thickness, like the cube example you showed, is pressed towards the solid body. Will the force only be applied to the nodes where the shell element is defined or over the whole thickness of the element. I hope you understand this question. I have run into some problems trying to model a brake rotor as a shell, but it seems to be causing major inaccuracies at the contact with the retainer because the force is applied at a smaller area then in reality.

  • @FEAry_tales

    @FEAry_tales

    9 ай бұрын

    Even bonding between shell edge and solid give some unphysical behaviour, especialy in area close to contact. If you need an adequat "no penetration" contact between thick shell side (which represented by edge) and face (from solid or other shell object), unfortunatelly, you need to use solid formulation. Shell edge will not give possibillity to do that in correct way.

  • @nuno_costa_2700
    @nuno_costa_2700 Жыл бұрын

    Thank you so much for the informative video. Can you explain how to solve the rotation problem in the straight edge model? I am having a problem because I have mede a model where I have a shell connected to the beam and the beam rotates with the shell, and I have made another model where I connect shell to 3D beam and I cannot mimic that effect.

  • @FEAry_tales

    @FEAry_tales

    Жыл бұрын

    can you show some screenshots or video?situation not very clear. for current description i can think that problem is the same - not all dof a coupled

  • @nuno_costa_2700

    @nuno_costa_2700

    Жыл бұрын

    @@FEAry_tales Yes, after some time I found it to be that. How would you solve it? THank you for responding

  • @FEAry_tales

    @FEAry_tales

    Жыл бұрын

    @@nuno_costa_2700 2 way - 1. merge nodes (if its possible 2. Manually create contact between end of beam and edge of shell. It can be done in fully manual way, or in semiautomatic (you need to change preferences for Contact "folder"