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How to correct the RBE3_CBUCH stiffness matrix between to assemble 2Dshell to 3Dsolid

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

Hi,

 

I want to realize an assembly between 2D shell END 3d SOLID BODYwith bolts 

i could delete the dof 4 5 6 of the solid body 

but i have k1=k2=k3=0 for the CBUCH element ! 

How to correct the RBE3_CBUCH stiffness matrix between to assemble 2Dshell to 3Dsolid (K1=K2=K3=0 .. this is fault)

 

Thank you

 

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    User: "Sanjay Nainani_20973"
    Sanjay Nainani_20973
    New Altair Community Member
    Updated by Sanjay Nainani_20973

    Hello,

     

    Can you please be more clear. What do you mean by you need to correct the stiffness matrix between the 2D and 3D part?

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

    thank you for your reply, 

    when i want to assemble the 2D shell with 3D solid body using RBE3 ( Bolt ) i should delete the 4,5,6 DOF 

    i did that

    but the CBUCH element (between 2 RBE3 ) it have stiffness k1=k2=3=0 !! this is not right

    so i dont know how it can be corriged automatically  

    User: "Sanjay Nainani_20973"
    Sanjay Nainani_20973
    New Altair Community Member
    Updated by Sanjay Nainani_20973

    You have to enter the values manually or you can make the element RIGID.

    There is no way of getting the values automatically.

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