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Constant Strain Frequency Sweep Measurements on Granite Rock
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2008 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 100, no 6Article in journal (Refereed) Published
Abstract [en]

Like many materials, granite exhibits both nonlinear acoustic distortion and slow nonequilibrium dynamics. Measurements to date have shown a response from both phenomena simultaneously, thus crosscontaminating the results. In this Letter, constant strain frequency sweep measurements eliminate the slow dynamics and, for the first time, permit evaluation of nonlinearity by itself characterized by lower resonance frequencies and a steeper slope. Measurements such as these are necessary for the fundamental understanding of material dynamics, and for the creation and validation of descriptive models.

Place, publisher, year, edition, pages
The American Physical Society , 2008. Vol. 100, no 6
Keyword [en]
Nonlinear acoustics, slow dynamics, constant strain sweep, granite rock
National Category
Fluid Mechanics and Acoustics Applied Mechanics
URN: urn:nbn:se:bth-8613DOI: 10.1103/PhysRevLett.100.068501ISI: 000253238400081Local ID: diva2:836354
Note from: 2012-09-18 Created: 2008-04-15 Last updated: 2015-06-30Bibliographically approved

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Hedberg, Claes
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