Response surface methodology calibration for DEM study of the impact of a spherical bit on a rock

Hernandez, C.; Estay, Danilo; Cruchaga, Marcela

doi:10.1016/j.simpat.2021.102466

Cited by 11 publications

(4 citation statements)

References 57 publications

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“…Yan and other scholars [41][42][43][44][45] performed calibration on different materials using the DOE method, explored the impact of microscopic parameters on macroscopic parameters, and further proposed corresponding adjustment criteria. Deng Shuxin and other researchers [46][47][48][49][50] used the DOE method to calibrate a 3D model and they discovered insignificant deviations in the results. Peng and other researchers [51][52][53] believed that the Plackett-Burman(PB) design was insufficiently accurate and therefore developed various methods, such as spherical symmetry design and central composite design.…”

Section: Design Of Experiments Methodsmentioning

confidence: 99%

A Review of Calibration Strategies for Microscopic Parameters in Discrete Element Method

Liu

Wang

et al. 2023

Preprint

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Discrete element method (DEM) offers a distinct advantage in addressing fracture problems due to its exemption from partial differential equations. However, the governing equations of DEM incorporate microscopic parameters that cannot be accessed via experimental methods. Parameter calibration represents the most prevalent technique currently utilized to obtain the required microscopic parameters for DEM. This article initially introduces the development history of DEM calibration, then elaborates on the governing equations of DEM and the microscopic parameters required for calibration. Next, the principles of classical DEM calibration methods are explicated in detail, alongside the validation and discussion of their properties. Lastly, this study investigates the model dependence of DEM and presents guidance for the calibration application of large-scale simulations.

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Section: Design Of Experiments Methodsmentioning

confidence: 99%

A Review of Calibration Strategies for Microscopic Parameters in Discrete Element Method

Liu

Wang

et al. 2023

Preprint

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“…Yan and other scholars 93 – 97 performed calibration on different materials using the DOE method, explored the impact of microscopic parameters on macroscopic parameters and further proposed corresponding adjustment criteria. Deng Shuxin and other researchers 56 , 98 – 101 used the DOE method to calibrate a 3D model and they discovered insignificant deviations in the results. Peng and other researchers 102 – 104 believed that the Plackett-Burman (PB) design was insufficiently accurate and therefore developed various methods, such as spherical symmetry design and central composite design.…”

Section: Review Of Calibration Strategiesmentioning

confidence: 99%

Review of calibration strategies for discrete element model in quasi-static elastic deformation

Liu

Wang

et al. 2023

Sci Rep

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This study first reviewed theories of the mechanical response of structures under loading, and the discrete element method provides a route for studying mechanical response including elastic deformation and structure failure. However, the direct acquisition of the microscopic parameters from the governing equations of the discrete element method via experiments encounters challenges. One possible strategy to obtain these microscopic parameters is parameter calibration that are widely used by researchers. Secondly, the governing equations and failure criterion of the discrete element method are summarized, and the microscopic parameters that would be calibrated are pinpointed. Next, the principles of classical calibration methods of discrete element method are explicated in detail, alongside the validation and discussion of their properties. Lastly, this study examined the applicability of calibrated parameters and points out that the size ratio, porosity, maximum radius, and minimum radius of particles should be identical in both the geometric calibration model and that for applications.

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“…The rock is granodiorite with macroscopic properties of density ρ = 2600 kg/m 3 , Y = 60 GPa, and ν = 0.22. The calibration procedure has been previously reported in [35]. The microparameters of the rock were calibrated using the response surface methodology and are presented in Table 1.…”

Section: Problem Descriptionmentioning

confidence: 99%

“…Moreover, the calibration procedure was validated by comparing it to a finite element analysis. These findings, along with the detailed analysis, can be consulted in [35]. Furthermore, it is worth noting that the total mass and momentum of the drill bit are primarily concentrated in the spherical bit, which possesses a mass of 2.62 kg.…”

Section: Problem Descriptionmentioning

confidence: 99%

Investigation on the Influence of the Bit Radius and Impact Velocity on Rock Fragmentation by Discrete Element Method

2023

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The bit–rock interaction is a key point in the fracture process observed in excavation applications, which makes its analysis relevant. As the discrete element method (DEM) has been successfully applied to study rock breakage behavior, we apply it in the present study to analyze various aspects of the bit–rock interaction. This research focuses on numerically analyzing the bit–rock interaction, encompassing the force penetration relationship (FPR), mechanical energy transfer to the rock, and the efficiency of the mechanical energy transfer process. In order to perform this analysis, we simulate various bit radii and impact velocities. In this study, we establish a power–law function to describe the relationship between the energy transferred to the rock and the force, both as functions of bit penetration. The least-squares method is employed to accomplish this determination. Remarkably, it was observed that the latter aligns with the Hertzian contact law when lower impact velocities of the bit are employed. Moreover, a bit-radius-dependent optimal velocity for the mechanical energy transfer process was determined, signifying its significance in the design of excavation tools. The primary conclusion drawn from this research is the quantification of the influence of both the bit impact velocity and the bit radius on the force penetration relationship during the bit–rock interaction. This quantification was achieved by employing the coefficients derived from the regression model established for the FPR. These findings hold practical implications for the enhancement of excavation tools’ efficiency during the design phase, thus contributing to advancements in the field of excavation engineering.

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Response surface methodology calibration for DEM study of the impact of a spherical bit on a rock

Cited by 11 publications

References 57 publications

A Review of Calibration Strategies for Microscopic Parameters in Discrete Element Method

A Review of Calibration Strategies for Microscopic Parameters in Discrete Element Method

Review of calibration strategies for discrete element model in quasi-static elastic deformation

Investigation on the Influence of the Bit Radius and Impact Velocity on Rock Fragmentation by Discrete Element Method

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