How can I do a beam to solid submodel in apdl?

- July 13, 2025 at 3:46 am
  
  2020221038
  Subscriber
  
  I know how to do a beam to solid submodel in WB, but how to do it in APDL?
- July 14, 2025 at 11:17 am
  
  Erik Kostson
  Ansys Employee
  
  Hi
  See the CBDOF command and the section in mapdl help on sub models.
  All the best
  Erik
  - July 14, 2025 at 11:35 am
    
    2020221038
    Subscriber
    
    Thank you for your response. In the help, the CBDOF command only introduces shell-shell, shell-solid, and solid-solid submodels, and does not introduce beam-to-solid submodels. I have also consulted some literature. ANSYS submodels can only be used for shells and solids, and there is no mention of their use for beam elements in APDL.
- July 14, 2025 at 11:34 am
  
  Lydia
  Ansys Employee
  
  Hello,
  You can review the following documentation links to use as a reference point for your analysis:
  https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v251/en/ans_adv/Hlp_G_ADV4_3.html
  https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v251/en/ans_vm/Hlp_V_VM142.html
  
  Warm regards,
  Lydia
  - July 14, 2025 at 11:44 am
    
    2020221038
    Subscriber
    
    Thank you for your response. In the help, the CBDOF command only introduces shell-shell, shell-solid, and solid-solid submodels, and does not introduce beam-to-solid submodels. I have also consulted some literature. ANSYS submodels can only be used for shells and solids, and there is no mention of their use for beam elements in APDL.
    - July 14, 2025 at 2:12 pm
      
      Lydia
      Ansys Employee
      
      You are right I didn't notice that you are doing beam-solid submodeling. Beam to solid submodeling is not using CBDOF command. Even in Mechanical the correct way to import the Cut Boundaries is with Remote Force and Remote Constraints. So, the corresponding way in APDL would be to use Remote Point based constrains.
      
      So, you will need to create Remote Points in your submodel and then add the required constraints to those Remote Points with D command. D
      
      Warm regards,
      Lydia
    - July 14, 2025 at 2:43 pm
      
      2020221038
      Subscriber
      
      This method cannot map node displacements in the global model to the local model. Instead, it is necessary to manually couple all points in the cross-section or use 184 elements for connection. These operations can be performed in Workbench, which is generally consistent with APDL. Therefore, I would like to know how to achieve this in APDL.