Sandwich modelling with Shell and Solid elements

[eng950]

hi,

i want to model a sandwich with shell elements for the facesheets and solid elements for the core. The facesheets and the core have the same mesh and i used the contraint equation to equivalence the nodes. My Question: Shell and solid elements have different degrees of freedom, shell 6 (rotational and translational) and solid only 3 translational. I want to do a nodal analysis and don't know if the different degrees of freedom affect my solution??

I found a lot of information how to connect solid to shell elements, but in my case the shell elements lie directly on the solid elements so i don't know if i need to worry about the diffrent degrees of freedom.

thanks in advance!

 

[cloa]

Repost in an appropriate Engineering computer software forum.

 

[Ron]

Why not just model as three shell elements with different properties for the middle shell element...or the same for solid elements.

 

[rb1957]

i'd post in the FE forum.

in any case, the face sheets will use the same nodes as the solid, no? the solid can react forces only, the faces could be membrane or plate