Fatigue Crack Initiation Life Prediction of the Rubber Damper Based on Seq-N Curve of Rubber Material

In this article, the fatigue crack initiation life of the rubber damper is predicted based on the Seq−N curve of rubber material. First, the general expression of the equivalent stress Seq and the fatigue crack initiation life Nf of rubber material are derived under different stress states. Second, the fatigue crack initiation life of a dumbbell-type rubber specimen under different tension strains are measured, and the fatigue parameters of the...