Finite Element Analysis to Fatigue Life of U-shape Bellows

The stress and the stress convergence points of bellows is analyzed in this paper by ANsys software,then the fatigue life of bellows is investigated on E-N curves of the fatigue tool module and the fatigue life distribution has been obtained.A comparison has been made between finite element analysis and empirical formula.lt is found that the finite element results is closer to the experimental results,indicating that the finite element analysis is reliable.At last,the problems in the future research is pointed out.