DOI: 10.1029/jb087ib05p03873. Frequency characteristics of acoustic emission in rocks under uniaxial compression and its relation to the fracturing process to failure

Frequency characteristics of acoustic emission in rocks under uniaxial compression and its relation to the fracturing process to failure

10.1029/jb087ib05p03873

Crossref journal-article

American Geophysical Union (AGU)

Journal of Geophysical Research: Solid Earth (13)

Abstract

Acoustic emissions generated during the uniaxial compression of brittle rocks were counted after band‐pass filtering. Throughout the whole process from application of load to failure, the count rate monitored through a low pass window was compared statistically with that monitored through a high pass window. The emission rate monitored through a low pass window increases more rapidly than that monitored through a high pass window as rock approaches failure. Two possible explanations for this effect are (1) generation of larger cracks (or coalescence of cracks into larger sizes) and (2) the relative attenuation of higher‐frequency wave components. This finding is consistent with past observations, i.e., the relative number of large‐amplitude events increases (i.e., a decrease in b value) as rock approaches failure. We suggest that larger cracks tend to generate events with larger amplitudes and containing lower‐frequency components. The frequency characteristics of acoustic emissions are used to characterize the microfracturing processes leading to failure. The beginning of a sequence of acoustic emission activity is discussed in relation to the stress‐strain curve and the onset of dilatancy. The present observations may be utilized in understanding structural instability of a region where rockbursts or earthquakes can potentially occur. If a sizable microseismic population is observed through sensors placed near the fault, then a potential exists for predicting major earthquakes.

Bibliography

Ohnaka, M., & Mogi, K. (1982). Frequency characteristics of acoustic emission in rocks under uniaxial compression and its relation to the fracturing process to failure. Journal of Geophysical Research: Solid Earth, 87(B5), 3873â3884. Portico.

Authors 2

Mitiyasu Ohnaka (first)
Kiyoo Mogi (additional)

References 45 Referenced 194

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{'key': 'e_1_2_1_21_1', 'first-page': '1', 'article-title': 'Variation of the elastic wave velocity of rocks in the process of deformation and fracture under high pressure', 'volume': '32', 'author': 'Matsushima S.', 'year': '1960', 'journal-title': 'Bull. Disaster Prev. Res. Inst., Kyoto Univ.'} / Bull. Disaster Prev. Res. Inst., Kyoto Univ. / Variation of the elastic wave velocity of rocks in the process of deformation and fracture under high pressure by Matsushima S. (1960)
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{'key': 'e_1_2_1_24_1', 'first-page': '831', 'article-title': 'Magnitude‐frequency relation for elastic shocks accompanying fractures of various materials and some related problems in earthquakes, 2', 'volume': '40', 'author': 'Mogi K.', 'year': '1962', 'journal-title': 'Bull. Earthquake Res. Inst., Tokyo Univ.'} / Bull. Earthquake Res. Inst., Tokyo Univ. / Magnitude‐frequency relation for elastic shocks accompanying fractures of various materials and some related problems in earthquakes, 2 by Mogi K. (1962)
{'key': 'e_1_2_1_25_1', 'first-page': '41', 'article-title': 'Some precise measurements of fracture strength of rocks under uniform compressive stress', 'volume': '4', 'author': 'Mogi K.', 'year': '1966', 'journal-title': 'Felsmech. Ingenieurgeol.'} / Felsmech. Ingenieurgeol. / Some precise measurements of fracture strength of rocks under uniform compressive stress by Mogi K. (1966)
{'key': 'e_1_2_1_26_1', 'first-page': '1103', 'article-title': 'Source locations of elastic shocks in the fracturing process in rocks, 1', 'volume': '46', 'author': 'Mogi K.', 'year': '1968', 'journal-title': 'Bull. Earthquake Res. Inst., Tokyo Univ.'} / Bull. Earthquake Res. Inst., Tokyo Univ. / Source locations of elastic shocks in the fracturing process in rocks, 1 by Mogi K. (1968)
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{'key': 'e_1_2_1_30_1', 'first-page': '473', 'article-title': 'A study of space‐time distribution of AE hypocenters in a rock sample under uniaxial compression', 'volume': '32', 'author': 'Nishizawa O.', 'year': '1981', 'journal-title': 'Bull. Geol. Surv. Jpn.'} / Bull. Geol. Surv. Jpn. / A study of space‐time distribution of AE hypocenters in a rock sample under uniaxial compression by Nishizawa O. (1981)
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{'key': 'e_1_2_1_35_1', 'first-page': '67', 'article-title': 'Frequency dependence of acoustic emission activity in rocks under incremental, uniaxial compression', 'volume': '56', 'author': 'Ohnaka M.', 'year': '1981', 'journal-title': 'Bull. Earthquake Res. Inst., Tokyo Univ.'} / Bull. Earthquake Res. Inst., Tokyo Univ. / Frequency dependence of acoustic emission activity in rocks under incremental, uniaxial compression by Ohnaka M. (1981)
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10.1029/JB077i020p03788
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10.1785/BSSA0580010399 / Bull. Seismol. Soc. Am. / The frequency‐magnitude relation of microfracturing in rock and its relation to earthquakes by Scholz C. H. (1968)
{'key': 'e_1_2_1_42_1', 'first-page': '513', 'article-title': 'Elastic pulses in the fracture of rock samples (in Russian)', 'volume': '5', 'author': 'Shamina O. G.', 'year': '1956', 'journal-title': 'Izv. Akad. Nauk SSSR Ser. Geofiz.'} / Izv. Akad. Nauk SSSR Ser. Geofiz. / Elastic pulses in the fracture of rock samples (in Russian) by Shamina O. G. (1956)
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Dates

Type	When
Created	17 years, 6 months ago (Feb. 6, 2008, 9:25 a.m.)
Deposited	1 year, 11 months ago (Sept. 23, 2023, 6:20 a.m.)
Indexed	1 month ago (Aug. 2, 2025, 12:13 a.m.)
Issued	43 years, 3 months ago (May 10, 1982)
Published	43 years, 3 months ago (May 10, 1982)
Published Online	12 years, 11 months ago (Sept. 20, 2012)
Published Print	43 years, 3 months ago (May 10, 1982)

Funders 0

None

BibTeX

@article{Ohnaka_1982, title={Frequency characteristics of acoustic emission in rocks under uniaxial compression and its relation to the fracturing process to failure}, volume={87}, ISSN={0148-0227}, url={http://dx.doi.org/10.1029/jb087ib05p03873}, DOI={10.1029/jb087ib05p03873}, number={B5}, journal={Journal of Geophysical Research: Solid Earth}, publisher={American Geophysical Union (AGU)}, author={Ohnaka, Mitiyasu and Mogi, Kiyoo}, year={1982}, month=may, pages={3873–3884} }

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