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how to hex mesh a t-type tube

User: "Altair Forum User"
Altair Employee
Updated by Altair Forum User

Hello, I have one question.

 

 

As you can see there is a T-shaped tube.

 

I want to know how to mesh t-tube using only hex mesh.

 

please leave any comments or advice. 

 

Thank you!

<?xml version="1.0" encoding="UTF-8"?>T-tube.JPG

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    User: "tinh"
    Altair Community Member
    Updated by tinh

    Hi,

    Simply make quad mesh on outer side and then use panel 2d>elem offset>solid layers to generate hexa mesh:

    Capture.PNG.cc0b3dea22a62e53e75ae2298d661449.PNG

     

    Unable to find an attachment - read this blog

    User: "Altair Forum User"
    Altair Employee
    OP
    Updated by Altair Forum User

    Thank you for your kindness. 

     

    In case of simple model, it's easy.

     

    but I want to analysis welded part, so it's not simple because that model contain welded part.

     

    Can you check my model out?

     

    I attached file.

     

    Many thanks.

    <?xml version="1.0" encoding="UTF-8"?>t-tube(in detail).JPG

    Unable to find an attachment - read this blog

    User: "QuyNguyenDai"
    Altair Community Member
    Updated by QuyNguyenDai

    With weld, it's also possible. But that needs a lot of work.

     

    User: "Altair Forum User"
    Altair Employee
    OP
    Updated by Altair Forum User

    I try to divide mesh with a quarter of the the model as show in the attached figure. 

     

    So the first step is to make it mappable, but i don't know how to trim the weld part.

     

    Do you have a good idea?

     

    For reference, attach a quarter model.

     

     

       

     

     

    <?xml version="1.0" encoding="UTF-8"?>quarter.JPG

    Unable to find an attachment - read this blog

    User: "QuyNguyenDai"
    Altair Community Member
    Updated by QuyNguyenDai

    You have to SPLIT more !

    User: "tinh"
    Altair Community Member
    Updated by tinh

    Thank you for your kindness. 

     

    In case of simple model, it's easy.

     

    but I want to analysis welded part, so it's not simple because that model contain welded part.

     

    Can you check my model out?

     

    I attached file.

     

    Many thanks.

    <?xml version="1.0" encoding="UTF-8"?>t-tube(in detail).JPG

     

     

     

    make a layer of quads along the weld, then you can map solid elems following them

    Unable to find an attachment - read this blog

    User: "Altair Forum User"
    Altair Employee
    OP
    Updated by Altair Forum User

    Thank you for all of comments.

     

    Now I have another question.

     

    As see the attached figure, mesh is not matching between two part.

     

    Please let me know how to match them.

     

    Thank you for your help all the time.

    <?xml version="1.0" encoding="UTF-8"?>not matching.JPG

    User: "QuyNguyenDai"
    Altair Community Member
    Updated by QuyNguyenDai

    In order to match:

    • The same number of element (nodes)
    • The same 'bias' value

    Maybe you can associate existing nodes to new solid/surface before mesh?

    User: "Altair Forum User"
    Altair Employee
    OP
    Updated by Altair Forum User

    Hi Taehwan Um,

     

    Try mapping elements in the reverse direction (Choose elements you want match as source elements).

     

    Thank you