Creep Property of Magnetorheological Elastomers of Seism Isolator for Building

Abstract:

The performance of magnetorheological (MR) elastomers can be controlled by an applied field, so we can design intelligent isolators with adjustable and controllable parameters. All isolators more or less suffer from creep deformation, and the intensity will directly affect the service life of the equipment to be isolated. In this paper, NDI polyurethane-based MR elastomers were prepared and their creep properties were tested. The results show that as the filling mass fraction of carbonyl iron powder was increasing, the creep intensity in MR elastomers was first increased and then reduced; when the mass fraction was 70%, the creep intensity was less than that of the base material. Therefore, the creep property of MR elastomers can be improved by designing an appropriate content of carbonyl iron powder according to use requirement.

• Periodical: Applied Mechanics and Materials (Volumes 357-360)
• Pages: 1291-1294
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.357-360.1291
• Online since: August 2013
• Authors: Wei Xiong Yu, Shen Lin Yang, Xue Yang
• Keywords: Creep, Magnetorheological Elastomer, Seism Isolator

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