Evaluation of microscopic strength distribution in rock using acoustic emission measurements

Toru Takahashi; Kazushi Sato; Toshiyuki Hashida; Hideaki Takahashi

doi:10.1299/kikaia.63.908

Evaluation of microscopic strength distribution in rock using acoustic emission measurements

Toru Takahashi, Kazushi Sato, Toshiyuki Hashida, Hideaki Takahashi

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

A method for determining microscopic strength distribution in rocks using an acoustic emission (AE) technique is proposed. The principle of the method is based on a statistical model for fracture analysis of quasi-brittle materials which has been developed by McClintock et al. The statistical model assumes an inhomogeneous strength distribution of the material which is dictated by the fracture probability with Weibull distribution. Firstly, the principle of the statistical method is verified by performing numerical simulations using a network model. Secondly, the method is applied to experimental results of uniaxial tension tests and AE measurements conducted on granite and marble. It is demonstrated that the numerical and experimental results support the validity of the proposed method for determining the microscopic strength distribution in rocks.

Original language	English
Pages (from-to)	908-913
Number of pages	6
Journal	Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume	63
Issue number	609
DOIs	https://doi.org/10.1299/kikaia.63.908
Publication status	Published - 1997
Externally published	Yes

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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Evaluation of microscopic strength distribution in rock using acoustic emission measurements. / Takahashi, Toru; Sato, Kazushi; Hashida, Toshiyuki; Takahashi, Hideaki.

In: Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, Vol. 63, No. 609, 1997, p. 908-913.

Research output: Contribution to journal › Article › peer-review

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abstract = "A method for determining microscopic strength distribution in rocks using an acoustic emission (AE) technique is proposed. The principle of the method is based on a statistical model for fracture analysis of quasi-brittle materials which has been developed by McClintock et al. The statistical model assumes an inhomogeneous strength distribution of the material which is dictated by the fracture probability with Weibull distribution. Firstly, the principle of the statistical method is verified by performing numerical simulations using a network model. Secondly, the method is applied to experimental results of uniaxial tension tests and AE measurements conducted on granite and marble. It is demonstrated that the numerical and experimental results support the validity of the proposed method for determining the microscopic strength distribution in rocks.",

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AU - Hashida, Toshiyuki

AU - Takahashi, Hideaki

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AB - A method for determining microscopic strength distribution in rocks using an acoustic emission (AE) technique is proposed. The principle of the method is based on a statistical model for fracture analysis of quasi-brittle materials which has been developed by McClintock et al. The statistical model assumes an inhomogeneous strength distribution of the material which is dictated by the fracture probability with Weibull distribution. Firstly, the principle of the statistical method is verified by performing numerical simulations using a network model. Secondly, the method is applied to experimental results of uniaxial tension tests and AE measurements conducted on granite and marble. It is demonstrated that the numerical and experimental results support the validity of the proposed method for determining the microscopic strength distribution in rocks.

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Evaluation of microscopic strength distribution in rock using acoustic emission measurements

Abstract

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