The formulae for stresses and angular displacements of U-shaped bellows ove
rall bending in a meridian plane under pure bending moments are presented b
ased on the general solution for slender ring shells proposed by Zhu Weipin
g, et al. and the solution for ring plates. The results evaluated in this p
aper are compared with those on EJMA (standards of the expansion joint manu
facturers association) and of the experiment given by Li Tingxilz, et al.