Simulation of failure around a circular opening in rock

Fakhimi, A.; Carvalho, Fernanda C.S.; Ishida, Tsuyoshi; Labuz, Joseph F.

doi:10.1016/s1365-1609(02)00041-2

Cited by 197 publications

(70 citation statements)

References 10 publications

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“…In fig.5(b), remote failures appear all around the circular hole, and finally, a macroscopic failure plane across the specimen is formed. This failure process is very similar to laboratory test result (Fakhimi et al,2002).…”

Section: (3) Collapse Of Cavitysupporting

confidence: 85%

Numerical Simulation of Rock Test for Engineering Properties Using Mesh-Free Method

Takekawa¹,

Yamada²,

Mikada³

et al. 2007

The 11th International Symposium on Recent Advances in Exploration Geophysics (RAEG 2007)

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An element free Galerkin method which does not require connectivity between elements and nodes is examined its efficiency for rock experiment. In this study, uni-axial tensile and compressive tests and collapse of cavity are examined. In this process, the rock specimen is assumed to heterogeneous assigned by Weibull distribution. Acoustic Emission which is microscopic behavior of the specimen agrees with laboratory tests, and failure mode of the specimen also agrees with general laboratory test results.

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Section: (3) Collapse Of Cavitysupporting

confidence: 85%

Numerical Simulation of Rock Test for Engineering Properties Using Mesh-Free Method

Takekawa¹,

Yamada²,

Mikada³

et al. 2007

The 11th International Symposium on Recent Advances in Exploration Geophysics (RAEG 2007)

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show abstract

“…Although there is no clear evidence for, or against, the formation of a shear band in the Mine-by Experiment, such features are often observed in laboratory tests. The rupture zone that formed in both the numerical (using a simplified BPM that represents the cement using contact bonds instead of parallel bonds) and laboratory test of a rectangular prism of Berea sandstone containing a circular hole and loaded in a plane strain (biaxial) test [75] may be such a feature. Potyondy and Autio [39] offer the following hypothesis regarding this feature:…”

Section: Pfc2d Model Behavior During Excavation-damage Studiesmentioning

confidence: 99%

Subsurface Geotechnical Parameters Report

Rigby¹,

Mrugala²,

Shideler³

et al. 2003

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“…Besides, the discrete element method is a good mean to study the fracturing behavior of rock. Through the discrete element method, many scholars have reproduced the fracturing behavior of rock material observed in laboratory and have also investigated the failure evolution [21,22]. Therefore, the numerical mode with different inclination angle would be established by PFC2D to analyze the micro fracturing mechanism.…”

Section: Shock and Vibrationmentioning

confidence: 99%

Dynamic Fracturing Behavior of Layered Rock with Different Inclination Angles in SHPB Tests

Qiu

et al. 2017

Shock and Vibration

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The fracturing behavior of layered rocks is usually influenced by bedding planes. In this paper, five groups of bedded sandstones with different bedding inclination angles are used to carry out impact compression tests by split Hopkinson pressure bar. A highspeed camera is used to capture the fracturing process of specimens. Based on testing results, three failure patterns are identified and classified, including (A) splitting along bedding planes; (B) sliding failure along bedding planes; (C) fracturing across bedding planes. The failure pattern (C) can be further classified into three subcategories: (C1) fracturing oblique to loading direction; (C2) fracturing parallel to loading direction; (C3) mixed fracturing across bedding planes. Meanwhile, a numerical model of layered rock and SHPB system are established by particle flow code (PFC). The numerical results show that the shear stress is the main reason for inducing the damage along bedding plane at = 0 ∘ ∼75∘ . Both tensile stress and shear stress on bedding planes contribute to the splitting failure along bedding planes when the inclination angle is 90 ∘ . Besides, tensile stress is the main reason that leads to the damage in rock matrixes at = 0 ∘ ∼90∘ .

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Simulation of failure around a circular opening in rock

Cited by 197 publications

References 10 publications

Numerical Simulation of Rock Test for Engineering Properties Using Mesh-Free Method

Numerical Simulation of Rock Test for Engineering Properties Using Mesh-Free Method

Subsurface Geotechnical Parameters Report

Dynamic Fracturing Behavior of Layered Rock with Different Inclination Angles in SHPB Tests

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