STUDIES ON CRACK PROPAGATION RESISTANCE OF ROCKS BASED ON HYDROFRAC DATA OF LARGE SPECIMENS.

H. Abe; Kazuo Hayashi; T. Hashida

STUDIES ON CRACK PROPAGATION RESISTANCE OF ROCKS BASED ON HYDROFRAC DATA OF LARGE SPECIMENS.

H. Abe, Kazuo Hayashi, T. Hashida

ENG - Fracture and Reliability Research Institute

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Citations (Scopus)

Abstract

The crack propagation resistance of rock, which depends significantly on the specimen size, was determined by analyzing results of the hydraulic fracturing experiments using the 10 m sized granite specimen at a quarry in Fukushima Prefecture, Japan. The method of analysis was the modified BEM, where the crack was assumed to be expanding as a semi-elliptical crack such that the stress intensity factor was approximately constant along its periphery. It was found that the fracture toughness of the granite being independent of crack size is 1. 93 MPa multiplied by (times) m parallel .

Original language	English
Title of host publication	Unknown Host Publication Title
Editors	Surendra P. Shah, Stuart E. Swartz
Publisher	Soc for Experimental Mechanics Inc
Pages	572-579
Number of pages	8
ISBN (Print)	0912053135
Publication status	Published - 1987 Dec 1

ASJC Scopus subject areas

Engineering(all)

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title = "STUDIES ON CRACK PROPAGATION RESISTANCE OF ROCKS BASED ON HYDROFRAC DATA OF LARGE SPECIMENS.",

abstract = "The crack propagation resistance of rock, which depends significantly on the specimen size, was determined by analyzing results of the hydraulic fracturing experiments using the 10 m sized granite specimen at a quarry in Fukushima Prefecture, Japan. The method of analysis was the modified BEM, where the crack was assumed to be expanding as a semi-elliptical crack such that the stress intensity factor was approximately constant along its periphery. It was found that the fracture toughness of the granite being independent of crack size is 1. 93 MPa multiplied by (times) m parallel .",

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AU - Hayashi, Kazuo

AU - Hashida, T.

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Y1 - 1987/12/1

N2 - The crack propagation resistance of rock, which depends significantly on the specimen size, was determined by analyzing results of the hydraulic fracturing experiments using the 10 m sized granite specimen at a quarry in Fukushima Prefecture, Japan. The method of analysis was the modified BEM, where the crack was assumed to be expanding as a semi-elliptical crack such that the stress intensity factor was approximately constant along its periphery. It was found that the fracture toughness of the granite being independent of crack size is 1. 93 MPa multiplied by (times) m parallel .

AB - The crack propagation resistance of rock, which depends significantly on the specimen size, was determined by analyzing results of the hydraulic fracturing experiments using the 10 m sized granite specimen at a quarry in Fukushima Prefecture, Japan. The method of analysis was the modified BEM, where the crack was assumed to be expanding as a semi-elliptical crack such that the stress intensity factor was approximately constant along its periphery. It was found that the fracture toughness of the granite being independent of crack size is 1. 93 MPa multiplied by (times) m parallel .

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M3 - Conference contribution

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SN - 0912053135

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BT - Unknown Host Publication Title

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A2 - Swartz, Stuart E.

PB - Soc for Experimental Mechanics Inc

ER -

STUDIES ON CRACK PROPAGATION RESISTANCE OF ROCKS BASED ON HYDROFRAC DATA OF LARGE SPECIMENS.

Abstract

ASJC Scopus subject areas

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