Abstract
Abstract 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 rubber material are obtained by fitting the experimental results under the uniaxial stress condition. Thus, the equivalent stresses Seq of the dangerous node in the rubber damper are obtained under different working conditions by means of the finite element numerical model. Finally, the fatigue lives of the rubber dampers are obtained by combining the general expressions of the fatigue crack initiation life Nf of rubber material with the equivalent stress Seq of the dangerous node, which are closer to the fatigue crack initiation life experimental results of the rubber damper than the fatigue life obtained based on the εGL,max−N curve. The results indicate the effectiveness for predicting the fatigue crack initiation life of the rubber damper based on the Seq−N curve of the rubber material.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
