Model of Internal Friction Damping in Solids

Details Model of Internal Friction Damping in Solids Model of Internal Friction Damping in Solids

2002-10-29

arxiv.org/abs/physics/0210121v1

Physics

Classical Physics

12 pages, 4 figures

Scientific paper

A model for harmonic oscillator damping due to the internal friction of solids has been developed, based on considerations of a long period pendulum. The assumption of a complex elastic modulus to describe stress-strain hysteresis in the support structure of the pendulum yields an expression for the figure of merit Q that agrees with many experiments involving material damping. As such, the approximations of this linear model stand in contrast with common theory.

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