Wheat Grain Rolling Friction Coefficients for Discrete Element Modeling

A dataset from 2026 containing calibrated contact parameters for wheat grains in discrete element simulations. It includes specific coefficients for wheat-to-wheat and wheat-to-white-cast-iron contacts, such as elastic restitution, static friction, and rolling friction, derived from physical experiments and simulation. The data was authored by Huapo Jia and published on figshare under a CC-BY-4.0 license.

Use Cases

• Calibrating discrete element models for wheat grain behavior based on the provided friction and restitution coefficients.
• Simulating wheat grain fracture and compression using the Tavares model parameters for fracture energy and cumulative damage.
• Validating simulation results for wheat grain piles using the angle of repose data mentioned in the description.
• Optimizing wheat roller milling processes based on the calibrated contact parameters between grains and grinding rollers.

Strengths

• Provides specific, experimentally validated coefficients: e.g., rolling friction coefficient between wheat grains and white cast iron is 0.179.
• Model validation metrics are included, such as a 1.05% deviation between simulated and experimental angle of repose values.
• Fracture energy parameters are defined, with a median value of 2069.78 J/kg and a cumulative damage coefficient of 5.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• The dataset is very small (12.6 KB), indicating a limited scope focused on specific parameters.

Provenance

Source

figshare

Collection Method

Parameters were determined through a combined approach of physical experiments (uniaxial compression, drop hammer impact, angle of repose tests) and simulation calibration.

Time Range

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Freshness

Last updated 2026-04-13 17:39:22; freshness should be verified.

Geography

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