Experimental Study of Viscoelastic Dampers under Large Deformation

Gang Zhao; Peng Pan; Jia Ru Qian; Jin Song Lin

doi:10.4028/www.scientific.net/AMM.166-169.2226

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 166-169Experimental Study of Viscoelastic Dampers under...

Experimental Study of Viscoelastic Dampers under Large Deformation

Abstract:

The paper presents an experimental study on a new type viscoelastic damper, which is expected to have better energy dissipation capability. Tests on the dampers’ mechanical properties, including shear storage modulus, shear loss modulus, and loss factor, were conducted using reduced scale specimens, and took strain amplitude, loading frequency and ambient temperature as test parameters. Aging tests, low cycle and high cycle fatigue tests were also conducted. Particularly, the low cycle fatigue behavior under a strain of 300% and the basic mechanical behavior under strains of 300%-420% were investigated. Test results suggest that the dependency of the mechanical properties on frequency and temperature is small, the energy dissipation capacity is stable for both large and small displacement, and the damper reaches a strain of 420% without failure.

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Periodical:

Applied Mechanics and Materials (Volumes 166-169)

Pages:

2226-2233

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.166-169.2226

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Online since:

May 2012

Authors:

Gang Zhao, Peng Pan, Jia Ru Qian, Jin Song Lin

Keywords:

Fatigue Behavior, Loss Factor, Shear Loss Modulus, Shear Storage Modulus, Viscoelastic Damper

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