Numerical simulation of size effect on rock fracture using SPH and a size-dependent constitutive model

Yingnan Wang, Ha H. Bui, Giang D. Nguyen, Ranjith P. Gamage

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

2 Citations (Scopus)

Abstract

Due to the inevitable size difference of rock between laboratory specimens and practical applications, size effect on fracture properties of rock has been a critical issue over a past few decades. Many studies have been carried out to examine this issue, and the results show that rock materials exhibit a strong size-dependent behaviour. In this paper, a continuum computational framework, combining Smoothed Particle Hydrodynamics (SPH) with a size-dependent constitutive, is applied for simulating rock fracture problems. The numerical framework is validated against experiments through a series of uniaxial tension tests. The good agreement between SPH and experiment indicates the potential of this proposed framework for predicting size-dependent behaviour of rock fractures.

Original languageEnglish
Title of host publication9th Australasian Congress on Applied Mechanics, ACAM 2017
PublisherNational Committee on Applied Mechanics
ISBN (Electronic)9781925627022
Publication statusPublished - 1 Jan 2017
EventAustralasian Congress on Applied Mechanics 2017 - University of New South Wales, Sydney, Australia
Duration: 27 Nov 201729 Nov 2017
Conference number: 9th
https://acam9.com.au/

Publication series

Name9th Australasian Congress on Applied Mechanics, ACAM 2017
Volume2017-November

Conference

ConferenceAustralasian Congress on Applied Mechanics 2017
Abbreviated titleACAM 2017
CountryAustralia
CitySydney
Period27/11/1729/11/17
Internet address

Keywords

  • Cohesive fracture law
  • Mesh-independent
  • Mode I
  • Rock fracture
  • Size effect
  • SPH

Cite this

Wang, Y., Bui, H. H., Nguyen, G. D., & Gamage, R. P. (2017). Numerical simulation of size effect on rock fracture using SPH and a size-dependent constitutive model. In 9th Australasian Congress on Applied Mechanics, ACAM 2017 (9th Australasian Congress on Applied Mechanics, ACAM 2017; Vol. 2017-November). National Committee on Applied Mechanics.
Wang, Yingnan ; Bui, Ha H. ; Nguyen, Giang D. ; Gamage, Ranjith P. / Numerical simulation of size effect on rock fracture using SPH and a size-dependent constitutive model. 9th Australasian Congress on Applied Mechanics, ACAM 2017. National Committee on Applied Mechanics, 2017. (9th Australasian Congress on Applied Mechanics, ACAM 2017).
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abstract = "Due to the inevitable size difference of rock between laboratory specimens and practical applications, size effect on fracture properties of rock has been a critical issue over a past few decades. Many studies have been carried out to examine this issue, and the results show that rock materials exhibit a strong size-dependent behaviour. In this paper, a continuum computational framework, combining Smoothed Particle Hydrodynamics (SPH) with a size-dependent constitutive, is applied for simulating rock fracture problems. The numerical framework is validated against experiments through a series of uniaxial tension tests. The good agreement between SPH and experiment indicates the potential of this proposed framework for predicting size-dependent behaviour of rock fractures.",
keywords = "Cohesive fracture law, Mesh-independent, Mode I, Rock fracture, Size effect, SPH",
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Wang, Y, Bui, HH, Nguyen, GD & Gamage, RP 2017, Numerical simulation of size effect on rock fracture using SPH and a size-dependent constitutive model. in 9th Australasian Congress on Applied Mechanics, ACAM 2017. 9th Australasian Congress on Applied Mechanics, ACAM 2017, vol. 2017-November, National Committee on Applied Mechanics, Australasian Congress on Applied Mechanics 2017, Sydney, Australia, 27/11/17.

Numerical simulation of size effect on rock fracture using SPH and a size-dependent constitutive model. / Wang, Yingnan; Bui, Ha H.; Nguyen, Giang D.; Gamage, Ranjith P.

9th Australasian Congress on Applied Mechanics, ACAM 2017. National Committee on Applied Mechanics, 2017. (9th Australasian Congress on Applied Mechanics, ACAM 2017; Vol. 2017-November).

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

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N2 - Due to the inevitable size difference of rock between laboratory specimens and practical applications, size effect on fracture properties of rock has been a critical issue over a past few decades. Many studies have been carried out to examine this issue, and the results show that rock materials exhibit a strong size-dependent behaviour. In this paper, a continuum computational framework, combining Smoothed Particle Hydrodynamics (SPH) with a size-dependent constitutive, is applied for simulating rock fracture problems. The numerical framework is validated against experiments through a series of uniaxial tension tests. The good agreement between SPH and experiment indicates the potential of this proposed framework for predicting size-dependent behaviour of rock fractures.

AB - Due to the inevitable size difference of rock between laboratory specimens and practical applications, size effect on fracture properties of rock has been a critical issue over a past few decades. Many studies have been carried out to examine this issue, and the results show that rock materials exhibit a strong size-dependent behaviour. In this paper, a continuum computational framework, combining Smoothed Particle Hydrodynamics (SPH) with a size-dependent constitutive, is applied for simulating rock fracture problems. The numerical framework is validated against experiments through a series of uniaxial tension tests. The good agreement between SPH and experiment indicates the potential of this proposed framework for predicting size-dependent behaviour of rock fractures.

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KW - Mesh-independent

KW - Mode I

KW - Rock fracture

KW - Size effect

KW - SPH

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Wang Y, Bui HH, Nguyen GD, Gamage RP. Numerical simulation of size effect on rock fracture using SPH and a size-dependent constitutive model. In 9th Australasian Congress on Applied Mechanics, ACAM 2017. National Committee on Applied Mechanics. 2017. (9th Australasian Congress on Applied Mechanics, ACAM 2017).