Plastic strain failure can be used to model ductile failure in materials. Failure initiation is based on the effective plastic strain in the material. The user inputs a maximum plastic strain value.
If the material effective plastic strain is greater than the user defined maximum, failure initiation occurs. The material instantaneously fails.
Note: This failure model must be used in conjunction with a plasticity or brittle strength model.
| Name | Symbol | Units | Notes |
|---|---|---|---|
| Maximum Equivalent Plastic Strain | Epl max | None | Input data > zero |
Custom results variables available for this model:
| Name | Description | Solids | Shells | Beams |
|---|---|---|---|---|
| EFF_PL_STN | Effective Plastic Strain | Yes | Yes | Yes |
| STATUS | Material Status** | Yes | No | No |
**Material status indicators (1 = elastic, 2 = plastic, 3 = bulk failure, 4= bulk failure, 5 = failed principal direction1, 6 = failed principal direction 2, 7 = failed principal direction 3)