Lei Xue
Chinese Academy of Sciences
GeologyBrittlenessDeformation (engineering)Phase transitionOil shaleComposite materialWeibull distributionLandslideGeotechnical engineeringMaterials scienceMineralogyShape parameterInstabilityMetamorphic rockUniaxial compressionCompressive strengthIgneous rockFracture (geology)Fracture mechanicsRenormalization groupCrack closureStress (mechanics)
27Publications
9H-index
339Citations
Publications 27
Newest
#1Zhenlong GeH-Index: 1
#2Qiang SunH-Index: 4
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Abstract Microwave assisted mechanical rock breaking is a hybrid rock breaking method that combines microwave heating and mechanical rock breaking technologies and is proven to have potential applications in mineral processing, mining, and geotechnical engineering. It is, thus, important to understand the effect of microwave-induced damage on rock fracture characteristics. In this study, granite specimens of the Cracked Straight Through Brazilian Disc (CSTBD) were used to carry out the mode I fr...
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#1Baicun Yang (Northeastern University (China))
#1Baicun Yang (Northeastern University (China))H-Index: 5
Last. Miaomiao Wang (Chang'an University)H-Index: 2
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A correlation study between the fracability and brittleness of shale gas reservoir is crucial for optimize reservoir reconstruction and enhance shale gas recovery. To investigate the relationship between fracability and brittleness of shale, a series of uniaxial compression tests of Silurian Longmaxi shale samples were carried out using a novel setup that combines X-ray micro-computed tomography with a uniaxial loading apparatus. Based on the CT images obtained from the test, fractal dimension o...
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#1Baicun Yang (NU: Northeastern University)
#2Siqing Qin (CAS: Chinese Academy of Sciences)H-Index: 13
Last. Hong-Ran Chen (CAS: Chinese Academy of Sciences)H-Index: 2
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#1Xiaolin Huang (CAS: Chinese Academy of Sciences)H-Index: 6
#1Xiaolin Huang (CAS: Chinese Academy of Sciences)H-Index: 27
Last. Daping Tai (CAS: Chinese Academy of Sciences)
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Abstract Laboratory tests revealed that by enhancing the weathering degree, a transition of pre-peak stress-strain mechanical responses of crystalline rocks under unconfined compression from approximate linearity to nonlinearity was evident, as was the weakening of macro-mechanical properties. However, thus far, very few numerical studies have been conducted to quantitatively characterize the strong-to-weak transition of the mechanical behaviors of crystalline rocks modulated by the weathering d...
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#1Huang XiaolinH-Index: 1
Last. Liang NingH-Index: 2
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1 CitationsSource
#1Yuan Li (CAS: Chinese Academy of Sciences)H-Index: 1
#2Lei Xue (CAS: Chinese Academy of Sciences)H-Index: 9
Last. Xiaowa Wu (CAS: Chinese Academy of Sciences)H-Index: 3
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The acoustic-emission (AE) nondestructive monitoring method was used to investigate the deformation–failure of Longmaxi marine shale samples from the Sichuan Basin in uniaxial compression tests. Millions of AE ring counts were recorded by six sensors that were mounted on the surface of cylindrical specimens. The AE ring counts rate and energy rate were applied to study crack development during fracturing. AE locations at different stress stages during the loading process were obtained to study t...
3 CitationsSource
#1Baicun Yang (CAS: Chinese Academy of Sciences)H-Index: 5
#2Lei Xue (CAS: Chinese Academy of Sciences)H-Index: 9
Last. Ke Zhang (CAS: Chinese Academy of Sciences)H-Index: 2
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An understanding of crack propagation is critical for the development of rock mechanic models. To study the propagation of internal cracks in situ and determine their formation mechanism, a series of uniaxial compression tests on shale specimens were conducted using a novel setup that combines X-ray micro-computed tomography (X-ray micro-CT) with a uniaxial loading apparatus, which allows CT scans to be performed during compression. Macro- and micro-scale internal cracks were extracted from CT i...
7 CitationsSource
#1Hong-Ran Chen (CAS: Chinese Academy of Sciences)H-Index: 2
#2Siqing Qin (CAS: Chinese Academy of Sciences)H-Index: 13
Last. Ke Zhang (CAS: Chinese Academy of Sciences)H-Index: 2
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Abstract Better understanding the evolutionary mechanism of landslides is very important to predict their occurrence based on firm scientific grounds. The stability of a rock slope is often dominated by one or more locked segments along a potential slip surface with a large bearing capacity to resist instability. We propose three preliminary categories for locked segments and develop a physical model for predicting the instability of rock slopes with locked segments, by coupling a one-dimensiona...
18 CitationsSource
#1Baicun Yang (CAS: Chinese Academy of Sciences)H-Index: 2
#1Baicun Yang (CAS: Chinese Academy of Sciences)H-Index: 5
Last. Miaomiao WangH-Index: 2
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Applying the statistical damage theory based on the Weibull distribution to describe rock deformation and failure processes is an important development in rock mechanics. The shape parameter of the Weibull distribution, m, determines the basic shape of the distribution curve; additionally, it also represents a physical characteristic which can be applied when constructing rock constitutive models. To study the evolution of m during rock failure when applying the Weibull distribution to rock mech...
4 CitationsSource