2026· International Journal of Scientific Research and Management· 0 citations· 23 references
Abstract
Discrete element model (DEM) parameters are crucial for accurately predicting soil properties and disturbance levels. This study aimed to provide an efficient method for accurately determining DEM parameters for paddy soil. The Hertz-Mindlin and JKR contact models were used to simulate the paddy soil, and the Plackett-Burman, the Steepest Ascent, and the Box-Behnken tests were used to determine the DEM parameters. The accuracy of the established discrete element model was evaluated using actual slump test. The Plackett-Burman test results showed that the soil surface energy, soil-soil rolling friction coefficient, and soil-steel static friction coefficient had a significant impact on the total relative error between the simulation results and the test results. Box-Behnken test optimization results show that the soil surface energy, soil-soil rolling friction coefficient, and soil-steel static friction coefficient are 0.869 J.m², 0.109, and 0.651, respectively. Comparison with actual soil slump test results shows that the calibrated DEM model has an overall relative error of 5.59% and a coefficient of variation of 3.49%. This research can provide a theoretical basis and technical support for subsequent research on soil-machine interaction mechanisms.
Simulation of tillage operations is critical for precision management of soil-tool interactions, facilitating the conservation of soil structure. Improper use of machinery during land preparation in agriculture may lead to soil structure destruction. This paper aimed to analyze the effect of deep tillage on soil struct...
This study calibrated key contact parameters for discrete element simulations of interactions among Panax notoginseng seedlings, lateritic soil, and 65Mn steel to address the lack of systematic multi-media parameter calibration methods. The researchers investigated three core contact interfaces using EDEM software, foc...
Wei Su, Yi Zeng, Qingxu Yu et al.· INMATEH Agricultural Enginee...· 0 citations
Numerical modelling of the interaction between soil-engaging tools and agricultural soils has become central to the design of tillage and seeding equipment, where draught reduction, controlled soil disturbance and residue management influence energy use and crop establishment. The discrete element method (DEM), which r...
M. Onker, P. Gupta, R. Salunkhe et al.· Journal of Experimental Agri...· 0 citations
Due to the anisotropy and small size of wheat roots, as well as the neglect of shear process effects on mechanical properties in existing wheat root-soil composite (WRSC) models, the establishment and parameter calibration of WRSC models remain inaccurate, hindering the precise analysis of the microscopic effects of fu...
Deep soil cementation is widely used for strengthening weak soils; however, the effectiveness of injection mortars largely depends on their penetration ability and interaction with in situ soil conditions. This study aims to develop and validate a methodology for preparing equivalent loamy soil for large-scale tray mod...
M. Smagulova, R. Lukpanov, Kenzhebek Azatbekov et al.· Geotechnics· 0 citations
Soil–concrete interface shear behavior is important in pile foundations, retaining structures, and soil–structure interaction systems. In practice, interface friction parameters are often assumed as a fraction of the soil friction angle, which ignores surface roughness and particle characteristics. This study presents...
T. Thennakoon, K. V. S. Sampath, R. Rajapakse· Moratuwa Engineering Researc...· 0 citations
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