Hi all,
I've got one question about the influence of the piping temperature on the natural frequencies of a piping system.
If i remember well, stiffness matrix of a piping element would be something like E.Iz/L3 [ ... ] so it is influenced by the temperature since the Young modulus varies with the temp.
I am currently studying a piping system which operates either at 100°C or at 400°C, what induces a slight difference on Young modulus (4%).
So i want to know if it is possible in CAESAR to take it into account, or if you think it is negligible...
I first thought that when you specified a load case for the restraint linearization, CAESAR uses it to choose the appropriate Young modulus as well, but it seems it's not true.
Does CAESAR use the cold Young modulus as default in modal analysis?
Thanks in advance for your help...