See Johnson-Cook Strength for information about this model. However, the strain rate correction parameter described in this material model is not used by LS-DYNA.
This material behavior is written as *MAT_JOHNSON_COOK or *MAT_SIMPLIFIED_JOHNSON_COOK depending on whether it is used in combination with an equation of state or not. The simplified form is used when no equation of state is defined. The thermal terms are discarded in that scenario.
Custom results variables available for this model:
| Name | Description | Solids | Shells | Beams |
|---|---|---|---|---|
| EPS | Effective Plastic Strain | Yes | Yes* | No |
| TEMP | Temperature** | Yes | Yes* | No |
*Resultant value over shell/beam section.
**Temperature will be non-zero only if a specific heat capacity is defined.