Shell interaction

Hi All,

I am modeling cruciform (shaped like a cross) 3d structure as thick 
shells. In briefly, in the model two shells intersect each other.  
All dimensions and material properties are same in respect to 3D 
model, but total weight of shell model is much more that 3d one. 

I think, in the shell model calculation, the intersection volume of 
the shells are added two times, and consequently it increases the 
total weight, so gives different output results.

Could anyone give me some advice that how to overcome this problem.

Many thanks,
Orhan Cicek








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