Physics
Scientific paper
Nov 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....8610849v&link_type=abstract
Journal of Geophysical Research, vol. 86, Nov. 10, 1981, p. 10849-10852.
Physics
4
Energy Dissipation, Gravitational Effects, Tides, Viscoelasticity, Displacement, Earth-Moon System, Rates (Per Time), Shear Properties
Scientific paper
A calculation is conducted regarding the local and total dissipation rate of mechanical energy for an incompressible, Kelvin-Voigt body in a circular orbit with finite obliquity. The considered material is characterized by a shear modulus and a viscosity. Of the two parameters, only the shear modulus is known. An investigation is conducted regarding the variation of the total dissipation rate with viscosity. For small values of the viscosity the Kelvin-Voigt material approximates the behavior of an elastic solid. In this range, results for the earth-moon system are similar to those obtained by Peale and Cassen (1978) using a modified form of the elastic solution. For large values of the viscosity the results are qualitatively different from those in the 'elastic' range, as viscous effects dominate the material response.
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