Wheat Grain Fracture Model Calibration Data for Discrete Element Simulation

Huapo Jia published this dataset on figshare in April 2026. It contains the data underlying a figure from a study that systematically calibrated contact and crushing parameters for wheat grains using the Tavares model. The dataset includes calibrated coefficients for wheat-to-iron and wheat-to-wheat contacts, fracture energy distribution parameters, and validation error metrics.

Use Cases

• Calibrating discrete element method (DEM) simulation parameters for wheat grains based on the provided contact and crushing coefficients.
• Validating wheat grain fracture models by comparing simulated and experimental force-displacement curves using the calibrated fracture energy and damage coefficient.
• Optimizing wheat roller milling process parameters in numerical simulations using the established anisotropic compression-fracture model.

Strengths

• Specific calibrated parameters are provided, including elastic restitution, static friction, and rolling friction coefficients for two contact types.
• Validation metrics are included, such as a 1.05% deviation in angle of repose and relative errors of 4.47% and 1.27% for fracture force and energy.
• Fracture energy distribution is characterized with a median value of 2069.78 J/kg and a cumulative damage coefficient of 5.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The dataset is very small (10.6 KB), indicating limited scope, likely containing only the core calibration results.

Provenance

Source

figshare, author Huapo Jia.

Collection Method

Data generated from physical experiments (angle of repose, uniaxial compression, drop hammer impact tests) and corresponding simulation calibration.

Time Range

The study and data were published in 2026; the temporal coverage of the underlying experiments is not specified.

Freshness

Last updated 2026-04-13 17:39:26; freshness should be verified.

Geography

Geographic scope of the wheat samples or experiments is not specified.