Cracking Processes and Coalescence Modes in Rock-Like Specimens with Two Parallel Pre-existing Cracks
Sign Up to like & getrecommendations! Published in 2018 at "Rock Mechanics and Rock Engineering"
DOI: 10.1007/s00603-018-1525-y
Abstract: The cracks in a rock tend to initiate, propagate, and coalesce under loading. Based on the digital image correlation (DIC) method, uniaxial compression tests are carried out on rock-like specimens with various arrangements of two… read more here.
Keywords: coalescence; rock like; coalescence modes; process ... See more keywords
Stress Evolution of Rock-Like Specimens Containing a Single Fracture Under Uniaxial Loading: a Numerical Study Based on Particle Flow Code
Sign Up to like & getrecommendations! Published in 2017 at "Geotechnical and Geological Engineering"
DOI: 10.1007/s10706-017-0347-0
Abstract: Stress concentrations are responsible for the crack propagation in rock and rock-like specimens. To investigate the stress evolution characteristics of the rock-like specimens containing a single prefabricated fracture, a numerical study based on the particle… read more here.
Keywords: propagation; rock like; stress; like specimens ... See more keywords
Experimental Research on Propagation Evolution with Rock-Like Cracks of the CFST Short Columns
Sign Up to like & getrecommendations! Published in 2018 at "Geotechnical and Geological Engineering"
DOI: 10.1007/s10706-017-0437-z
Abstract: To accurately grasp the failure mechanism of surrounding rock in Nanguan deep coal mines, and improve the ability of the concrete filled steel tube support effectively. First, the large size specimens made by rock-like material… read more here.
Keywords: propagation; research propagation; evolution; rock like ... See more keywords
Comparison of crack processes in single-flawed rock-like material using two bonded–particle models under compression
Sign Up to like & getrecommendations! Published in 2019 at "Arabian Journal of Geosciences"
DOI: 10.1007/s12517-019-4327-y
Abstract: The parallel bond model (PBM), one type of basic bonded particle model (BPM), has been diffusely studied in natural rock and rock-like material. It is well-known that BPMs yield unrealistically low ratios of compressive to… read more here.
Keywords: rock like; bonded particle; like material; rock ... See more keywords
Failure characteristics of jointed rock-like material containing multi-joints under a compressive-shear test: Experimental and numerical analyses
Sign Up to like & getrecommendations! Published in 2018 at "Archives of Civil and Mechanical Engineering"
DOI: 10.1016/j.acme.2017.12.003
Abstract: Abstract Extensive efforts have been made to gain a better understanding of the failure behaviour of rocks and rock-like materials, but crack propagation and failure processes under compressive-shear loading have not yet been comprehensively investigated.… read more here.
Keywords: mode; peak shear; rock like; compressive shear ... See more keywords
Influence of single flaw on the failure process and energy mechanics of rock-like material
Sign Up to like & getrecommendations! Published in 2017 at "Computers and Geotechnics"
DOI: 10.1016/j.compgeo.2017.01.011
Abstract: Abstract This paper investigates the influence of a flaw on crack initiation, the failure mode, deformation field and energy mechanism of the rock-like material under uniaxial compression. The results of laboratory test and numerical simulation… read more here.
Keywords: energy; like material; rock like; failure ... See more keywords
Mechanical behaviors of the brittle rock-like specimens with multi-non-persistent joints under uniaxial compression
Sign Up to like & getrecommendations! Published in 2019 at "Construction and Building Materials"
DOI: 10.1016/j.conbuildmat.2019.05.159
Abstract: Abstract The stability of rock engineering applications is significantly influenced by the mechanical behavior of jointed rock masses. However, the deformability, strength and failure characteristics of non-persistent jointed rock specimens have not been examined comprehensively.… read more here.
Keywords: non persistent; rock like; failure; stage ... See more keywords
Quasi-static loading rate effects on fracture process zone development of mixed-mode (I-II) fractures in rock-like materials
Sign Up to like & getrecommendations! Published in 2020 at "Engineering Fracture Mechanics"
DOI: 10.1016/j.engfracmech.2020.107365
Abstract: Abstract The development of a fracture process zone (FPZ) (microcrack zone) ahead of a fracture tip is a prominent fracture characteristic of rock-like materials. At present, understanding of the quasi-static loading-rate effect on the FPZ… read more here.
Keywords: mixed mode; mode; fracture; rock like ... See more keywords
Laboratory investigations on failure, energy and permeability evolution of fissured rock-like materials under seepage pressures
Sign Up to like & getrecommendations! Published in 2021 at "Engineering Fracture Mechanics"
DOI: 10.1016/j.engfracmech.2021.107694
Abstract: Abstract In this article, a series of laboratory experiments are carried out to investigate the coupled hydro-mechanical failure, energy and permeability of fissured rock-like specimens under the triaxial compression. Effects of internal seepage pressure p… read more here.
Keywords: seepage; rock like; permeability; fissured rock ... See more keywords
Crack propagation process and acoustic emission characteristics of rock-like specimens with double parallel flaws under uniaxial compression
Sign Up to like & getrecommendations! Published in 2021 at "Theoretical and Applied Fracture Mechanics"
DOI: 10.1016/j.tafmec.2021.102983
Abstract: Abstract To further investigate the macroscopic failure law of fractured rock mass, we have performed investigations on the initiation mechanism of microcracks in fractured rock mass from the perspective of micromechanics. The failure of fractured… read more here.
Keywords: propagation; rock like; acoustic emission; double parallel ... See more keywords
A THERMODYNAMIC CONSISTENT ELASTOPLASTIC FRACTIONAL TIME-DEPENDENT DAMAGE MODEL FOR ROCK-LIKE MATERIALS
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DOI: 10.1142/s0218348x21500456
Abstract: This paper aims at presenting a thermodynamically consistent elastoplastic fractional time-dependent damage model for describing short- and long-term behaviors of rock-like materials. The model utilizes generalized potential theory with a yield criterion, a non-associated flow… read more here.
Keywords: rock like; like materials; model; time dependent ... See more keywords