Effects of nonlinear thermoelastic damping in highly stressed fibers

Details Effects of nonlinear thermoelastic damping in highly stressed fibers Effects of nonlinear thermoelastic damping in highly stressed fibers

May 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002phrvb..65q4111c&link_type=abstract

Physical Review B, vol. 65, Issue 17, id. 174111

Physics

11

Gravitational Wave Detectors And Experiments, Brownian Motion, Anelasticity, Internal Friction, Stress Relaxation, And Mechanical Resonances, Thermoelasticity And Electromagnetic Elasticity

Scientific paper

We present an analysis of thermoelastic damping in materials arising from the temperature dependence of the elastic moduli. We show that this form of damping can cancel thermoelastic damping arising from thermal expansion for a suitably chosen operating stress. For the case of the suspension fibers used in the gravitational wave detectors, this loss mechanism can be the dominant one.

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