Title
Measurement of material damping with bender elements in triaxial cell Measurement of material damping with bender elements in triaxial cell
Author
Publication type
conferenceObject
Publication
Subject
Physics
Source (journal)
Deformation characteristics of geomaterials
Source (book)
3rd International Symposium on Deformation Characteristics of, Geomaterials, SEP , 2003, LYON, FRANCE
Volume/pages
(2003) , p. 3-11
ISBN
90-5809-604-1
ISI
000186344600001
Carrier
E
Target language
English (eng)
Affiliation
University of Antwerp
Abstract
This paper presents a method to measure the viscous damping ratio of soils in isotropic stress conditions using a triaxial cell equipped with piezoceramic bender elements. The technique is based on the determination of a frequency response spectrum of the soil specimen by means of a continuous sine excitation generated by the emitter element. System identification procedures, known from modal testing, are applied for the interpretation of the spectra. Analytical expressions are found and a finite element model is developed to encircle the region of the resonant frequency. The test is performed on a reconstituted and undisturbed silt sample.
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