The progressive fracture of Lac du Bonnet granite

Martin, C. Derek; Chandler, N.

doi:10.1016/0148-9062(94)90005-1

Cited by 1,325 publications

(603 citation statements)

References 24 publications

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“…Many other studies report that decohesion of rock grains and matrix loosening is a consequence of the cyclic loading (Burdine 1963;Costin and Holcomb 1981;Martin and Chandler 1994;Widhalm et al 1996;Eberhardt et al 1999;Royer-Carfagni and Salvatore 2000;Zhao 2000;Zhang et al 2000;Gatelier et al 2002;Cardani and Meda 2004;Bagde and Petroš 2005a;Guo et al 2012). This is coupled with a high density of microfracturing and a more diffuse damaging of the samples (Haimson and Kim 1971;Eberhardt et al 1999;Cattaneo and Labuz 2001;Nejati and Ghazvinian 2014).…”

Section: Crack Development and Measurementmentioning

confidence: 93%

“…Several studies point out that monotonic stress-strain curves act as a failure locus for cyclically loaded samples (Haimson and Kim 1971;Martin and Chandler 1994;Yamashita et al 1999;Zhang et al 2008;Xiao et al 2009;Guo et al 2012;Song et al 2013;Liu et al 2017). An example of such a phenomenon is reproduced in Fig.…”

Section: Stress-strain Curvesmentioning

confidence: 99%

“…Strain accumulates slowly with the number of cycles before peak (Heap et al 2010;Schaefer et al 2015) but in a much lower amount than previously described for constant amplitude cycles. However, cycles show a hysteresis, increasing as the maximum stress applied rises up (Martin and Chandler 1994;Heap et al 2010;Yang et al 2015). Poisson's ratio Young modulus Young modulus [GPa] Poisson's ratio [-] Cycle number [-] Fig.…”

Section: Stress-strain Curvesmentioning

confidence: 99%

“…Figure 1d represents a damage-controlled test using increasing mean and amplitude stress (Tien et al 1990;Martin and Chandler 1994;Eberhardt et al 1999). In these studies, such kind of low-cycle test is used to correlate damage with variations in cohesion and mobilised friction.…”

Section: Loadingmentioning

confidence: 99%

See 3 more Smart Citations

Cyclic and Fatigue Behaviour of Rock Materials: Review, Interpretation and Research Perspectives

Cerfontaine¹,

Collin²

2017

Rock Mech Rock Eng

276

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Section: Crack Development and Measurementmentioning

confidence: 93%

Section: Stress-strain Curvesmentioning

confidence: 99%

Section: Stress-strain Curvesmentioning

confidence: 99%

Section: Loadingmentioning

confidence: 99%

See 2 more Smart Citations

Cyclic and Fatigue Behaviour of Rock Materials: Review, Interpretation and Research Perspectives

Cerfontaine¹,

Collin²

2017

Rock Mech Rock Eng

276

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“…Failure of brittle rock is progressive, although it appears to be sudden in many cases, and a number of studies have been devoted to the characterization of the fracture propagation behavior of different rock types (e.g. Eberhardt et al 1999;Scholz 1968;Martin and Chandler 1994;Peng and Johnson 1972). Although efforts have been made to correlate the strength and deformational properties with joint geometrical parameters, since the fracture progression behavior of jointed rock has been scarcely studied, the effects of joint geometrical properties on the fracture progression behavior of jointed rock are not well understood.…”

Section: Introductionmentioning

confidence: 99%

Do joint geometrical properties influence the fracturing behaviour of jointed rock? An investigation through joint orientation

Wasantha

Ranjith

Zhang

et al. 2015

Geomech. Geophys. Geo-energ. Geo-resour.

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Failure of brittle rock is often progressive and understanding the fracture development process within rock masses is important to identify the precursors of failures. Joints in rock masses influence the fracture progression behavior and we studied the influence of joint orientation on fracture progression in jointed rock. Undrained triaxial tests were conducted on 54 mm diameter and 108 mm high intact and singly-jointed sandstone specimens. The joints in jointed specimens were made rough (joint roughness coefficient = 10-12) and embedded in six different orientations-0°, 30°, 45°, 60°, 75°and 90°-and three different combinations of confining and initial pore-water pressures were considered (confining pressure/pore-water pressure = 4/1, 10/4 and 25/10 MPa). An acoustic emission (AE) monitoring system was employed during all tests to monitor the fracture development within the test specimens. The post-failure patterns of specimens displayed three different failure mechanisms-shearing through intact material, sliding along the joint and a mixture of both shearing and sliding-depending on the joint orientation and confining pressure. The fracture progression behavior of the specimens showed a strong correlation with these failure mechanisms. Intact specimens and specimens with joints oriented at 0°, 30°, 90°failed by shearing. Nevertheless, the AE patterns of intact specimens and specimens with 90°-oriented joints contrasted with those of specimens with joints oriented at 0°a nd 30°. Specimens with joints oriented at 60°failed by sliding with a constant rate of acoustic event generation starting from the beginning of deviatoric loading. A mixed failure mechanism was observed for specimens with joints oriented at 45°and 75°. While the characteristics of both sliding and shearing failure were observed from the AE patterns of both 45°and 75°orientations, the shearing failure component of the 75°case was found to be a result of experimental limitations rather than real behavior. Finally, we propose a family of typical AE curves to assist with the characterization of the fracture progression behavior of jointed rock by taking confining pressures and failure mechanisms into consideration.

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Deformability of Discrete Elements

Munjiza

2004

The Combined Finite‐Discrete Element Method

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The Discrete Element Method (DEM) appears as one of the most attractive methods for understanding general geotechnical problems and specifically the behavior of rocks due to their unique advantages in dealing with fracturing processes. In this work, unconfined compression and indirect tensile tests were performed for a magmatic rock, known as Lac du Bonnet granite, based on a discrete approach using DEM and a specific contact and cementation model between the particles. Concluding, a parametric analysis of the influence of Young's modulus on some macroscopic properties of the rock's numerical model was carried out, with the objective of generating contributions as to the understanding of the deformability and strength behavior of hard rocks.

show abstract

The progressive fracture of Lac du Bonnet granite

Cited by 1,325 publications

References 24 publications

Cyclic and Fatigue Behaviour of Rock Materials: Review, Interpretation and Research Perspectives

Cyclic and Fatigue Behaviour of Rock Materials: Review, Interpretation and Research Perspectives

Do joint geometrical properties influence the fracturing behaviour of jointed rock? An investigation through joint orientation

Deformability of Discrete Elements

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