Wheat Grain Fracture Model Calibration Parameters for Discrete Element Simulation

A 5.5 KB Excel file published on figshare by Huapo Jia on 2026-04 13. It contains systematically calibrated contact and crushing parameters for wheat grains using the Tavares crushing model. The parameters were validated through physical experiments including angle of repose, uniaxial compression, and drop hammer impact tests.

Use Cases

• Calibrating discrete element simulation models for wheat grain fracture based on the provided contact and crushing parameters.
• Validating simulation accuracy for wheat roller milling processes based on the calibrated fracture energy distribution and cumulative damage coefficient.
• Optimizing wheat processing equipment design based on the anisotropic grain fracture model parameters.
• Conducting comparative studies on material fracture behavior using the log-normal distribution parameters for fracture energy.

Strengths

• Parameters are quantitatively validated with specific error metrics: 1.05% deviation for angle of repose, 4.47% and 1.27% relative errors for fracture force and energy.
• Provides concrete calibrated coefficients: elastic restitution, static friction, and rolling friction coefficients for wheat-to-iron and wheat-to-wheat contacts.
• Model accounts for grain anisotropy, addressing a noted limitation in prior simplified models.

Limitations

• Row count and column-level documentation are absent; field semantics must be inferred after download.
• The dataset is very small (5.5 KB), indicating a limited scope focused solely on calibration parameters.
• Geographic or varietal source of the wheat grains used for calibration is not specified, which may affect generalizability.

Provenance

Source

Huapo Jia via figshare.

Collection Method

Calibrated and validated through a combined approach of physical experiments and simulation.

Time Range

The study period is not specified.

Freshness

Last updated 2026-04-13 17:40:02.

Geography

Spatial coverage is not specified.