SCATTERING STUDY OF ELASTIC WAVES ON PHYLLITE LIMESTONE SAMPLES AND A COMPARISON BETWEEN THEORY AND EXPERIMENTAL DATA

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RIAHI M.A.; VAKIL M.R.

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Journal: Journal of the Earth and Space Physics Year:2000 | Volume:26 | Issue:2 Page(s): 49-60

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Title

SCATTERING STUDY OF ELASTIC WAVES ON PHYLLITE LIMESTONE SAMPLES AND A COMPARISON BETWEEN THEORY AND EXPERIMENTAL DATA

Author(s)

RIAHI M.A. | VAKIL M.R. | Issue Writer Certificate

Keywords

ELASTIC WAVE SCATTERINGQ4

COMPRESSIONAL AND SHEAR WAVESQ3

Abstract

In this paper, the velocity values of shear and compressional elastic waves of Phyllite limestone samples obtained both theoretically and practically are compared. These rock samples were performed in cubic shape. At the room pressure and temperature, the velocity values for these samples were measured using the first arrival times of elastic waves along the mentioned samples. The frequency of compressional waves was 63 kHz and that for shear waves was 33 kHz. The velocity values of COMPRESSIONAL AND SHEAR WAVES for different incident angles such as 0, 30, 45, 60 and 90 degress between the receiver and the transducer were measured. In the theoretical stage, the crack density and dynamically Lama's constants were computed using Budiansky and O'Connell (1974) theory. Then, the theoretical velocity values of the same samples were calculated based on Hudson (1980) theory. The obtained results showed that a good correlation exists between the calculated and the measured data for the samples with low crack density. While for the samples with a high crack density the correlation is poor when the incident angles were at 30, 45 and 60 degrees. This difference between theory and measurements might be attributed to the presence of inclusions and inhomogeneity in the rock samples.

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APA: Copy

RIAHI, M.A., & VAKIL, M.R.. (2000). SCATTERING STUDY OF ELASTIC WAVES ON PHYLLITE LIMESTONE SAMPLES AND A COMPARISON BETWEEN THEORY AND EXPERIMENTAL DATA. JOURNAL OF THE EARTH AND SPACE PHYSICS, 26(2), 49-60. SID. https://sid.ir/paper/80599/en

Vancouver: Copy

RIAHI M.A., VAKIL M.R.. SCATTERING STUDY OF ELASTIC WAVES ON PHYLLITE LIMESTONE SAMPLES AND A COMPARISON BETWEEN THEORY AND EXPERIMENTAL DATA. JOURNAL OF THE EARTH AND SPACE PHYSICS[Internet]. 2000;26(2):49-60. Available from: https://sid.ir/paper/80599/en

IEEE: Copy

M.A. RIAHI, and M.R. VAKIL, “SCATTERING STUDY OF ELASTIC WAVES ON PHYLLITE LIMESTONE SAMPLES AND A COMPARISON BETWEEN THEORY AND EXPERIMENTAL DATA,” JOURNAL OF THE EARTH AND SPACE PHYSICS, vol. 26, no. 2, pp. 49–60, 2000, [Online]. Available: https://sid.ir/paper/80599/en

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