Hello Richard.... t hank you for the reply.

But the link you provide does not provide enough data for solving my problem.

I am modeling a piping system with 6 Flex-Hoses (Gas Tubine piping). The Axial Stiffness of the Flex hose is very much larger than the Lateral stiffness. During installation, we install the Flex Hose with Axial offset ( after installation, the shape of the Flex Hose will be an arc). So even if the Pipes at the end of the Flex Hose move axially, the flexhose experience no Axial growth /compression. So in operation, the stiffness of the Flex Hose in the axial direction will be much less than the actual Axial Stiffness. How can I simulate this effect in CAESAR ?

A approximation we did was, we gave the Axial stiffness value same as the lateral stiffness of the flex hose. We assumed that even though the Pipe move in Axial direction, the flex hose will move out (or in) in the lateral plane. Can this assumption be justified ?

Thanks and regards, Anish.