Hi all,

I'm modelling a tied rubber bellow near a pump nozzle; I modelled the bellow as for Application Guide (tied bellow simple model), with restrained cnodes in axial and along the two bending moment direction.

When I look at the restraint summary I see that in the sustained case all the load from pressure thrust (effective area x pressure) is absorbed from the modeled rigid element with the restrained cnodes.

When I look at the operating case I see that the expansion of the pipe causes large shear load at nozzle: it seems that the model of the tied bellow it's not capable to absorb the laterl movement of the pipe: it's this a realistic behavior of the EJ?

The tie rods, in the reality, do not permit relative lateral movement between the two pipe connected from the EJ???

TY.