Luo, Cangli and Ahrens, Thomas J. (1996) Stress wave attenuation in shock damaged rock. In: Shock compression of condensed matter 1995. AIP conference proceedings. No.370. American Institute of Physics , Melville, NY, pp. 589-592. ISBN 1-56396-566-6. https://resolver.caltech.edu/CaltechAUTHORS:20141022-134912422
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Abstract
The attenuation of ultrasonic stress waves in samples of gabbroic rock subjected to shock loading in the 11 Gpa range were studied. We determined the damage deficits, D_p, and attenuation coefficients, α_p, for the samples with different damage deficits under dynamic strains of 2×10^(−7) and at frequencies around 2 MHz using ultrasonic pulse-echo method. A fit to the data yields the P-wave spatial attenuation coefficient versus damage deficit: α_p=40.9D_p−30.5D^2_p (db/cm). Basing on the O’Connell-Budiansky theory, the relation between attenuation coefficient and crack density is given. The predictions of α_p from Walsh’s theory agrees well with the experiment results for the samples with different damage deficits.
| Item Type: | Book Section | |||||||||
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| Additional Information: | © 1996 American Institute of Physics. Published online 05 May 1996. This research is supported by NASA (NAGW-1941) and Phillips Lab. (F19628-95-C-0115). Contribution number 5571, Division of Geological and Planetary Sciences, California Institute of Technology. We thank Professor G. Ravichandran for the use of the ultrasonic apparatus. | |||||||||
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| Series Name: | AIP conference proceedings | |||||||||
| Issue or Number: | 370 | |||||||||
| DOI: | 10.1063/1.50816 | |||||||||
| Record Number: | CaltechAUTHORS:20141022-134912422 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20141022-134912422 | |||||||||
| Official Citation: | Stress wave attenuation in shock damaged rock Liu, Cangli and Ahrens, Thomas J., AIP Conference Proceedings, 370, 589-592 (1996), DOI:http://dx.doi.org/10.1063/1.50816 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 50690 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Tony Diaz | |||||||||
| Deposited On: | 22 Oct 2014 21:40 | |||||||||
| Last Modified: | 10 Nov 2021 18:59 |
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