dynamic modeling of a rock crushing process

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  Construction and application of a high precision 3D …

  2021111 · The results showed that the high-precision 3D simulation model for geomechanics of a complex coal seam effectively improved the accuracy of the modeling.

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  Research on blasting cumulative dynamic damage of surrounding rock …

  202323 · In the process of cyclic blasting during tunnel excavation, the reserved surrounding rock sustains irreparable damage accumulation.

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  Nonlinear Dynamic Modeling of Drillstring-Bit-Rock …

  2022811 · Summary. In this paper, based on the dynamic model of the geometrically exact drillstring in horizontal well, a nonlinear dynamic model of drillstring-bit-rock coupling system is established. First, the contact model of drillstring and borehole wall in vertical well is extended to the contact model of drillstring and borehole wall in 3D well. Then a new …

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  Numerical study of hard rock breakage under indenter impact …

  2020615 · A numerical model of rock fracture under indenter impact is developed by the hybrid finite and discrete element method. •. Rock breakage patterns are well simulated, which are consistent with experimental results. •. Formation of crushing zone, large fragment and cracks are closely related to the contact force. •.

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  Discrete/Finite Element Modelling of Rock Cutting with a …

  20161122 · This paper presents advanced computer simulation of rock cutting process typical for excavation works in civil engineering. Theoretical formulation of the hybrid discrete/finite element model has been presented. The discrete and finite element methods have been used in different subdomains of a rock sample according to expected material …

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  Modelling of Dynamic Rock Fracture Process with a Rate …

  201652 · This paper deals with numerical modelling of rock fracture under dynamic loading. For this end, a combined continuum damage-embedded discontinuity model is applied in finite element modelling of crack propagation in rock. In this model, the strong loading rate sensitivity of rock is captured by the rate-dependent continuum scalar …

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  A review of rockburst: Experiments, theories, and simulations

  202351 · The aim of this review is to discuss the novel development and the state-of-the-art in experimental techniques, theories, and numerical approaches proposed for rockburst. The definition and classification of rockburst are first summarized with an in-depth comparison among them.

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  Investigating the dynamic process of a rock avalanche …

  Rock avalanches typically entail the flow-like motion of angular rock blocks and fragments of diverse size. Numerical simulations are instrumental in understanding their dynamic process, supporting hazard and risk assessments. Simplified failure criteria, such as the Mohr-Coulomb or Drucker-Prager, are commonly adopted in landslide models relying on the …

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  The rock breaking and ROP increase mechanisms for single …

  2019518 · Meanwhile, the energy consumption to break rock, microscopic crushing process and chip characteristics as well as the relationship among these three factors for granite under different impacting frequencies and amplitudes are discussed.

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  Numerical simulation of the dynamic impact breakage testing of rock

  200521 · The dynamic fragmentation of solid, brittle materials is a fundamental activity that lies at the start of many manufacturing and recovery processes, most notably during crushing in the minerals and aggregates industries, during blasting in quarries and tunnels and in the action of some rock cutting processes [1].

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