Modelling tires using fluid cavity

[AbdelrahmanFakhr]

Hello everybody,

I'm trying to model double tires fixed in steel weight to be used later in modelling double tire impact test.
I defined fluid cavity property for each tire separately as the volume between the tires and steel cylinderical surface choosing a reference point as per attached pictures.
And used "Tie" to connect the rubber tires with the Steel cyilnder and assured that there is continuity in mesh but i get these errors for the tires surfaces.

The surface assembly_surf-9 is not completely enclosed. A list of element with free edges on this surface is given as follows:

Surface assembly_surf-9 is not continuous or it is composed of two or more regions joined at discrete nodes. The number of disconnected regions or regions joined at discrete nodes is 2. If this problem is caused by the inability of the code to trim the surface properly, respecify the surface by specifying both the element and face number. Use available post processor to visualize this surface.

The surface assembly_surf-10 is not completely enclosed. A list of element with free edges on this surface is given as follows:

Surface assembly_surf-10 is not continuous or it is composed of two or more regions joined at discrete nodes. The number of disconnected regions or regions joined at discrete nodes is 2. If this problem is caused by the inability of the code to trim the surface properly, respecify the surface by specifying both the element and face number. Use available post processor to visualize this surface.


Could anybody help me?

Thanks in advance

 

[FEA way]

Is the outer surface of the steel cylinder also selected for fluid cavity definitions ? Try excluding it from them and leaving only the surfaces of the tires selected.

 

[AbdelrahmanFakhr]

Thank you for your reply.

I've tried this now but still the same error message.

 

[FEA way]

Can you share the .cae file here ?