Models for acoustic loss in solids
| Autor: | L. Knopoff, G. J. F. MacDonald |
|---|---|
| Rok vydání: | 1960 |
| Předmět: |
Surface (mathematics)
Atmospheric Science Materials science Mechanical equilibrium Macroscopic model Soil Science Mineralogy Surface finish Aquatic Science Oceanography law.invention Stress (mechanics) chemistry.chemical_compound Geochemistry and Petrology law Earth and Planetary Sciences (miscellaneous) Surface roughness Earth-Surface Processes Water Science and Technology Ecology Attenuation Paleontology Forestry Mechanics Silicate Geophysics chemistry Space and Planetary Science |
| Zdroj: | Journal of Geophysical Research. 65:2191-2197 |
| ISSN: | 0148-0227 |
| Popis: | A macroscopic model for the attenuation of small-amplitude stress waves in solids is presented. The loss mechanism described is that of solid friction which varies as the gradient of the local stress. The model is illustrated by a mass-spring system sliding on a rough surface in which the roughness of the surface increases in either direction with distance from the equilibrium position of the mass. The Q for the model is independent of frequency. Experimental evidence for the dependence of Q on surface area in silicate aggregates suggests the validity of a solid-friction model. |
| Databáze: | OpenAIRE |
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