Constant Strain Frequency Sweep Measurements on Granite Rock
| Document type: | Journal Articles |
|---|---|
| Article type: | Original article |
| Peer reviewed: | Yes |
| Full text: | |
| Author(s): | Kristian Haller, Claes Hedberg |
| Title: | Constant Strain Frequency Sweep Measurements on Granite Rock |
| Journal: | Physical Review Letters |
| Year: | 2008 |
| Volume: | 100 |
| Issue: | 6 |
| Pagination: | 068501 |
| ISSN: | 0031-9007 |
| Publisher: | The American Physical Society |
| URI/DOI: | 10.1103/PhysRevLett.100.068501 |
| ISI number: | 000253238400081 |
| Organization: | Blekinge Institute of Technology |
| Department: | School of Engineering - Dept. of Mechanical Engineering (Sektionen för teknik – avd. för maskinteknik) School of Engineering S- 371 79 Karlskrona +46 455 38 50 00 http://www.bth.se/ing/ |
| Authors e-mail: | kristian.haller@bth.se, claes.hedberg@bth.se |
| Language: | English |
| Abstract: | 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. |
| Subject: | Physical Acoustics\General Mechanical Engineering\General |
| Keywords: | Nonlinear acoustics, slow dynamics, constant strain sweep, granite rock |
| Note: | http://prl.aps.org/browse |
