COMPUTE SIMPLIFIED RUBBER MATERIAL FAILURE VALUES BASED ON UNI-AXIAL AND EQUI-BIAXIAL FAILURE STRETCH RATIOS¶
Computes simplified rubber material failure constants (K or G1) from uni-axial and equi-biaxial failure stretch ratios or engineering strains. Use this worker when calibrating hyperelastic rubber material failure parameters for LS-DYNA or similar solvers from coupon test data.
Inputs¶
| Label | ID | Type | Default | Required | Description |
|---|---|---|---|---|---|
| Uni-Axial Failure | uni-axial_failure | scalar | 1 | Uni-axial failure value (stretch ratio λ or engineering strain) measured from a uniaxial tension coupon test; dimensionless, defaults to 1 (no failure offset). | |
| Equi Bi-Axial Failure | equi_bi-axial_failure | scalar | 1 | Equi-biaxial failure value (stretch ratio λ or engineering strain) measured from a biaxial tension coupon test; dimensionless, defaults to 1 (no failure offset). | |
| Input Type | input_type | string | stretch_ratio | Specifies whether the failure inputs are provided as stretch ratios (‘stretch_ratio’, λ = 1 + ε) or engineering strains (‘eng_strain’); defaults to ‘stretch_ratio’. | |
| Return Type | return_type | string | k | Selects which simplified failure constant to compute and return: ‘k’ for the K parameter or ‘g1’ for the G1 parameter; defaults to ‘k’. |
Outputs¶
| Label | ID | Type | Description |
|---|---|---|---|
| math_simplified_failure_output_1 | math_simplified_failure_output_1 | scalar | Computed simplified rubber failure constant (K or G1, dimensionless scalar) corresponding to the selected return_type, derived from the provided uni-axial and equi-biaxial failure inputs. |
Disciplines¶
- engineering.material.calibration
- engineering.material.characterization
- engineering.material.failure
Runnable example¶
A runnable example is registered for this worker. Open the example workflow on the d3VIEW canvas: /api/workflow/example?id=math_simplified_failure
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