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
| 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.