Can 2D and 3D mesh exist in the same model at the same time?

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

Hi,

 

I want to mesh an object built from CAD software.

 

The question is: Can I make 3d tetra mesh on one half of the object, and 2d automesh on the other side ?

 

Ultimately, I want to analyse the mesh by using FEM software ABAQUS.

 

But I haven't heard such a thing that the 2D and 3D mesh can be connected to each other, so I am asking here... 

 

Thanks.

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2015

    Yes, it's possible, depending to your objective.

     

    Because 2D mesh can not modelize all geometrical details, for example the chamfer, fillet,... we have to use 3D mesh in order to catch good and realistic results.

     

    By mixing two types of meshing, the important question is how to assembly them? There're many technique to do that, but the most important thing to remember: never make such 'assembly' in critical zone (high level of stress, concentration,...)

     

    HTH,

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2015

    Thanks,

     

    Could you suggest an article (or video) regarding the issue(making and assembling 2D and 3D meshes in one object) ? 

     

    Do 2D shell mesh and 3D tetramesh represent highly different result? that much? 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited July 2017

    how to join 2d and 3d mesh as degree of freedom is different in both cases ?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited July 2017

    Hi, 

    You can try connecting them with rigid elements.

    Please go through the post below which is similar to your case:

     

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