Connector between shell and solid elements

Rahul_P1
Rahul_P1
Altair Employee
edited October 2020 in Community Q&A

Hey everybody,

I want to perform a linear static analysis on a model consisting of shell and solid elements. The different shell element parts are connected to each other wire rod elements (CWELD, optistruct) to present a weldseam. How can I realize the weldseam connection between the shell and solid element parts? -I tried to take the rod elements as well, but in the output file there occurs an error like 'the chosen grids are no vertex grids'. The use of rigid elements is also impossible, because there are multiple rigid elements connected to a single grid during the automated generation (area + realize) which causes an 'degree-of-freedom'-error.

I´ll be thankful for every comment.

The picture below shows a relevant section from the model.
d3cjn-hw_forum.PNG

Tagged:

Answers

  • Rahul_P1
    Rahul_P1
    Altair Employee
    edited May 2015

    TKone2013

    Rigids are the best option for your model,

    Follow these steps,

    • Generate rigids automatically from the connectors module > spot or any such method.
    • Go to 1d > rigids > update > switch > (select elements by config for easy selection of all displayed rigids) to ensure that the common node is the independent node. (if your common node is the independent node then don't switch)
    • Go to 1d > rigids > combine > (select elements by config for easy selection of all displayed rigids) > use the combine rigids with common independent node option.

    So now you have rigids connecting your shells with the solids as required.

  • Rahul_P1
    Rahul_P1
    Altair Employee
    edited May 2015

    Thanks for your quick answer. The solution is a bit expensive, but it works icon_wink.gif

     

Categories