Discrete element simulation of rock cutting

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August undefined, 2024

WebApr 5, 2024 · In this paper, a two-dimensional eXtended Finite Element Method (XFEM) solution is presented for the hydro-mechanically coupled hydro-frac-induced propagation of multiple fractures in rocks. Fractures are considered one-dimensional objects, and the rock matrix is regarded as a two-dimensional medium. WebApr 6, 2024 · An underground coal gasification (UCG) process is strongly exothermic, which will cause thermal damage on rock cap. We proposed a new thermal damage numerical model based on a two dimension particle flow code (PFC2D) to analyze the inception and extension of cracks on pre-cracked red sandstone, which were thermally treated at a …

Analytical and Numerical Modeling of Soil Cutting and …

WebSep 1, 2013 · This paper presents numerical modelling of rock cutting processes. The model consists of a tool-rock system. 3D geometry is considered in the model. The rock is modelled using the discrete element… Expand 44 Deformation and fracture of rocks loaded with spherical indenters WebFeb 8, 2024 · Therefore, the influence of cutting sequence on rock breaking effect is considered in this paper. 3 Discrete Element Model PFC is an analysis code of the particle system based on the discrete element method, which studies the mechanical properties and behavior of the medium from a meso level. slow play notices on golf courses

Research on discrete element modeling and numerical simulation …

WebApr 6, 2024 · The collapse of overlying rocks caused by the instability of residual coal pillars during lower coal seam mining significantly impacts its safety. This paper focuses on the … WebApr 10, 2024 · Based on rock scratch tests and finite element rock cutting model, a discrete element modeling (DEM) rock cutting model was established to analyze the … Web13 rows · Sep 1, 2011 · The discrete element model of rock cutting is capable to represent correctly complexity of a ... software to take snapshot of screen

Coupled Thermo-hydro-mechanical Simulation of …

Discrete element simulation of rock cutting - Semantic Scholar

WebMar 21, 2024 · Considering the effects of confining pressure and cutting sequence, 2-D simulation models of rock-breaking by double TBM cutters were established by using the discrete element method. WebApr 11, 2024 · The drilling of lunar soil using the cutting edge of a rotary drill bit is a complicated mechanical tool–soil coupling process. ... The discrete element model used in the simulation is presented in ... Wen, G.L.; Liang, Z.W. Thermal simulation of drilling into lunar rock simulant by discrete element method. Acta Astronaut. 2024, 160, 378 ... slowplay nash poker setWeb1 day ago · With the development of computer technology, numerical simulation has been widely used as a tool to explore the damage and fracture of brittle materials (Wang et al., 2016, 2024).At present, several numerical methods are being used to explore the mechanism of crack propagation in materials, including the finite element method (FEM) … software to take songs off ipod

"WebApr 13, 2024 · Using the discrete/finite element modeling on linear cutting tests ... Labra C, Rojek J, Oñate E. Discrete/finite element modelling of rock cutting with a TBM disc … " - Discrete element simulation of rock cutting

Discrete element simulation of rock cutting

Advances in discrete element modelling of underground

WebNov 22, 2016 · The LCM test provides a direct measure of cutting forces and rock cuttability under pre-defined process parameters such as the cutter spacing, cutter penetration, cutter thrust and cutting speed. Fig. 4 Linear cutting machine (Colorado School of Mines) Full size image The LCM test is a suitable test to validate a numerical … WebThis paper presents numerical modelling of rock cutting processes. The model consists of a tool-rock system. 3D geometry is considered in the model. The rock is modelled using the...

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WebIn this paper, we introduce a computational model for the simulation of hypervelocity impact (HVI) phenomena which is based on the Discrete Element Method (DEM). Our paper constitutes the first application of DEM to the modeling and simulating of impact events for velocities beyond 5 kms-1. We present here the results of a systematic numerical study … WebSep 1, 2011 · Discrete element thermomechanical modelling of rock cutting with valuation of tool wear. The paper presents a thermomechanical discrete element model of rock …

WebSep 1, 2011 · Discrete element thermomechanical modelling of rock cutting with valuation of tool wear. The paper presents a thermomechanical discrete element model … WebSep 1, 2013 · Compared with other numerical modeling methods, the discrete element method (DEM) is a favorable candidate due to its advantages in efectively accommodating the large deformations and fractures...

WebThe discrete element method can take into account most kinds of discontinuities and material failure characterized with multiple fracture which makes it a suitable tool to study rock cutting [11,29,27]. The discrete element code PFC2D was successfully applied to simulation of rock cutting by Huang [11]. The same WebParticle Flow Code (PFC) was used to study the cutting force of the picks in linear [21–23] and rotary [1, 24] cutting process when the cutting thickness was constant and to develop the crack propagation [22, 23, 25] of coal and rock in the linear cutting process. Extended Discrete Element Method (EDEM) was used to establish linear conical ...

WebDec 7, 2024 · The discrete element software was used in the literature [ 15] to study the dynamic process of the coal rock being cut by the coal mining machine, and the influence of different cutting angles on the coal loading rate, cutting resistance, and the cutting energy consumption of shearer was studied.

WebFeb 17, 2011 · This paper presents numerical modelling of rock cutting processes. The model consists of a tool-rock system. 3D geometry is considered in the model. The rock is modelled using the... software to take vocals out of songsWebApr 6, 2024 · The collapse of overlying rocks caused by the instability of residual coal pillars during lower coal seam mining significantly impacts its safety. This paper focuses on the gentle dipping coal seam group and utilizes the discrete element method (DEM) as the basis to comprehensively consider multiple factors through orthogonal experiments. In so … software to synchronize files and foldershttp://gradfaculty.usciences.edu/files/education/Understanding-The-Discrete-Element-Method-Simulation-Of-Non-Spherical-Particles-For-Granular-And-Multi-Body-Systems.pdf slow play penalty in golfWebApr 13, 2024 · Using the discrete/finite element modeling on linear cutting tests ... Labra C, Rojek J, Oñate E. Discrete/finite element modelling of rock cutting with a TBM disc cutter. Rock Mech Rock Eng. 2024;50(3):621–38. ... Guo B, Cong GQ, Zhang XH, Zeng GY. Numerical simulation of rock fragmentation induced by a single TBM disc cutter … slowplay plastic playing cardsWebDiscrete element with zero-thickness is established on the co-plane of two finite elements, so that the discrete element shares the same node with different numbers with the surface of the two finite elements respectively (Fig. 1), and the discrete elements are generated among all finite elements of the model (Fig. 2).Before rock fracture, the stress and strain … software to test battery laptopWebJan 1, 2024 · The single-factor analysis method was used to study the variation law of the cutting depth, traction speed, and the drum’s rotational speed on the three-way force acting on the drum, the coal loading rate, and the trajectory of the coal particles. slow play playing cardsWebNov 19, 2015 · The third part of the book proceeds with the most important computational and simulation methods including Discrete Element Methods, the Combined Finite-Discrete Element Method, Molecular Dynamics ... software to tell me the specs of my computer