Description
The PELAS entry specifies the stiffness and stress coefficient of a spring element (CELAS1 or CELAS2 entry).
Format
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| PELAS | PID | K | GE | PID | K | GE |
Example
| PELAS | 24 | 1.+3 |
| Field | Definition | Type | Default |
|---|---|---|---|
| PID | Property identification number. | Integer > 0 | Required |
| K | Elastic property value. | Real | Required |
| GE | Structural element damping coefficient. See Remark 4. | Real or blank | 0.0 |
Remarks
- PELAS entries must all have unique property identification numbers.
- The use of negative spring values may result in fatal errors.
- One or two elastic spring properties may be defined on a single entry.
- To obtain the damping coefficient GE, multiply the critical damping ratio C/C0, by 2.0.
- If PARAM, W4 is not specified, GE is ignored in transient response analysis. See the Parameters section for more information on W4.