Study on Fracture Criterion for Hydraulically Induced Crack Initiation in Granite

Toshiyuki Hashida

doi:10.1299/kikaia.56.1730

Study on Fracture Criterion for Hydraulically Induced Crack Initiation in Granite

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

Abstract

Laboratory hydraulic fracturing experiments were conducted on uniaxially loaded cubic specimens of anisotropic granite to investigate the effect of anisotropy on the hydraulic fracture, and to exploit a method for predicting the breakdown pressure based on uniaxial tensile strength. Based on uniaxial tensile strength data, the results of the hydraulic fracturing experiments were analyzed with respect to the fracture angle and breakdown pressure. It was shown that the concept of a critical tensile stress at a characteristic distance, modified to account for the anisotropy of tensile strength, was able to explain the observed extension behaviours of hydraulic fractures.

Original language	English
Pages (from-to)	1730-1735
Number of pages	6
Journal	Transactions of the Japan Society of Mechanical Engineers Series A
Volume	56
Issue number	528
DOIs	https://doi.org/10.1299/kikaia.56.1730
Publication status	Published - 1990 Jan 1
Externally published	Yes

Keywords

Anisotropy
Breakdown Pressure
Characteristic Distance
Fracture
Fracture Angle
Fracture Criterion
Geothermal Energy Extraction
Granite
Hydraulic Fracturing
Strength

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.1299/kikaia.56.1730

Cite this

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title = "Study on Fracture Criterion for Hydraulically Induced Crack Initiation in Granite",

abstract = "Laboratory hydraulic fracturing experiments were conducted on uniaxially loaded cubic specimens of anisotropic granite to investigate the effect of anisotropy on the hydraulic fracture, and to exploit a method for predicting the breakdown pressure based on uniaxial tensile strength. Based on uniaxial tensile strength data, the results of the hydraulic fracturing experiments were analyzed with respect to the fracture angle and breakdown pressure. It was shown that the concept of a critical tensile stress at a characteristic distance, modified to account for the anisotropy of tensile strength, was able to explain the observed extension behaviours of hydraulic fractures.",

keywords = "Anisotropy, Breakdown Pressure, Characteristic Distance, Fracture, Fracture Angle, Fracture Criterion, Geothermal Energy Extraction, Granite, Hydraulic Fracturing, Strength",

author = "Toshiyuki Hashida",

year = "1990",

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doi = "10.1299/kikaia.56.1730",

language = "English",

volume = "56",

pages = "1730--1735",

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AU - Hashida, Toshiyuki

PY - 1990/1/1

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N2 - Laboratory hydraulic fracturing experiments were conducted on uniaxially loaded cubic specimens of anisotropic granite to investigate the effect of anisotropy on the hydraulic fracture, and to exploit a method for predicting the breakdown pressure based on uniaxial tensile strength. Based on uniaxial tensile strength data, the results of the hydraulic fracturing experiments were analyzed with respect to the fracture angle and breakdown pressure. It was shown that the concept of a critical tensile stress at a characteristic distance, modified to account for the anisotropy of tensile strength, was able to explain the observed extension behaviours of hydraulic fractures.

AB - Laboratory hydraulic fracturing experiments were conducted on uniaxially loaded cubic specimens of anisotropic granite to investigate the effect of anisotropy on the hydraulic fracture, and to exploit a method for predicting the breakdown pressure based on uniaxial tensile strength. Based on uniaxial tensile strength data, the results of the hydraulic fracturing experiments were analyzed with respect to the fracture angle and breakdown pressure. It was shown that the concept of a critical tensile stress at a characteristic distance, modified to account for the anisotropy of tensile strength, was able to explain the observed extension behaviours of hydraulic fractures.

KW - Anisotropy

KW - Breakdown Pressure

KW - Characteristic Distance

KW - Fracture

KW - Fracture Angle

KW - Fracture Criterion

KW - Geothermal Energy Extraction

KW - Granite

KW - Hydraulic Fracturing

KW - Strength

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Study on Fracture Criterion for Hydraulically Induced Crack Initiation in Granite

Abstract

Keywords

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