Refine Tetramesh

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

 

Hi, 

 

Is there a possibility to create a tetramesh from a surface mesh so that it has a smaller mesh size at the surface and larger in the inside. So the mesh size should follow a gradient from outside to inside. The shape I want to mesh is a vertebrae (so no geometrical shape). 

 

thanks, Best

J

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Answers

  • Rahul Rajan_21763
    Rahul Rajan_21763 New Altair Community Member
    edited August 2017

    you can keep smaller element size for enclosed volume 2d mesh & bigger element size for tetrahedral mesh.Make sure to have enclosed volume for 3d mesh.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited August 2017

    Hi Rahul,

     

    I try be clearer: 

    I have a surface mesh of a vertebra. Now I want to fill it with tetra solid elements. So far it is easy. However, I want to fill it in a way that I have small tetras at the surface (corresponding to my surface mesh) and larger elements in the center (see ). Is this possible?

     

    Thanks, J

    Unable to find an attachment - read this blog

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited August 2017

    ?

  • tinh
    tinh Altair Community Member
    edited August 2017

    :rolleyes:/emoticons/default_rolleyes.gif' title=':rolleyes:' /> I think it is default pattern . Did you slice your part and view inside ?

    in case you want to control gradient size, switch tetra parameter to 'user control' and input bigger value for 'growth rate'

    <?xml version="1.0" encoding="UTF-8"?>Capture.thumb.PNG.7a6f8810b3265e3c3b998e91d15428f4.PNG

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited August 2017

    Wow!! This is exactly what I was searching for! Thanks a lot tinh!!

    Best J

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