COMPUTE LANKFORD COEFFICIENT BASED ON 0,45 AND 90 DEG STRAINS¶
Computes the Lankford coefficient (r-value) for sheet metal anisotropy from width and thickness strains measured at 0°, 45°, and 90° orientations relative to the rolling direction. Use this worker when characterizing plastic anisotropy of sheet materials as part of material characterization or forming analysis workflows.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| R0 Strain | r0strain | scalar | — | ✓ | Dimensionless width-to-thickness true plastic strain ratio (or raw strain scalar) measured from a tensile coupon oriented at 0° to the rolling direction; required to compute R0. |
| R45 Strain | r45strain | scalar | — | ✓ | Dimensionless width-to-thickness true plastic strain ratio (or raw strain scalar) measured from a tensile coupon oriented at 45° to the rolling direction; required to compute R45. |
| R90 Strain | r90strain | scalar | — | ✓ | Dimensionless width-to-thickness true plastic strain ratio (or raw strain scalar) measured from a tensile coupon oriented at 90° to the rolling direction; required to compute R90. |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| math_lankford_coefficient_output_1 | math_lankford_coefficient_output_1 | scalar | Computed normal anisotropy coefficient (r̄ or individual Lankford r-value), dimensionless; typically the average r-value r̄ = (R0 + 2·R45 + R90) / 4 unless a single directional value is derived. |
Disciplines¶
- engineering.manufacturing
- engineering.material.characterization
Runnable example¶
A runnable example is registered for this worker. Open the example workflow on the d3VIEW canvas: /api/workflow/example?id=math_lankford_coefficient
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