TY - JOUR
T1 - Evaluation of microscopic strength distribution in rock using acoustic emission measurements
AU - Takahashi, Toru
AU - Sato, Kazushi
AU - Hashida, Toshiyuki
AU - Takahashi, Hideaki
PY - 1997
Y1 - 1997
N2 - 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.
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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U2 - 10.1299/kikaia.63.908
DO - 10.1299/kikaia.63.908
M3 - Article
AN - SCOPUS:0031147012
SN - 0387-5008
VL - 63
SP - 908
EP - 913
JO - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
JF - Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
IS - 609
ER -