Why An Expansion Joint Works Part Two
How does a metal bellows flex?
The theory of bellows deflections are discussed along with the EJMA (expansion joint manufacturers association) fatigue curves.
A brief review is given as to how the EJMA fatigue curves were developed.
A comparison is made between the deflection of a metal bellows verses that of a pipe loop for the ‘plastic correction’, or ‘yield’ of the material.
This is a video that is of interest to design, piping, and vessel engineers.