Model of Internal Friction Damping in Solids
Randall D. Peters
Abstract
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.
Create a lesson
Related papers
Impact of Phase Unwrapping on Multitarget Acoustic Lenses for Transcranial Holography
D. Attali, T. Tiennot, M. Tanter et al.
Harmonic Vector Fields and Betti Numbers in Bounded Three-Dimensional Electromagnetic Domains
Wei Jiang, Jie Liu
Increase of the electromechanical coupling of piezoelectric vibration harvesters through lateral bars
David Gibus, Grégoire Forges, Hélène Debéda et al.
Sliding contact fraction in gravity-driven dense cohesionless granular flows
Patrick Richard, Riccardo Artoni, Clovis Lambert et al.
Contact mechanics and friction of soft materials: an apparatus combining multi-axes dynamical actuation/measurement and in situ/in operando visualisation
Matthieu Guibert, Antoine Aymard, Cristobal Oliver et al.
Plasmonics at radio frequencies
Igor I. Smolyaninov, Quirino Balzano, John Mulholland et al.