Viscous
This command is used to construct a uniaxial viscous material object. stress =C(strain-rate)^alpha
uniaxialMaterial Viscous $matTag $C
$alpha
matTag
|
integer tag identifying material |
C
|
damping coeficient |
alpha
|
power factor (=1 means linear damping) |
NOTES:
- This material can only be assigned to truss and zeroLength elements.
- This material can not be combined in parallel/series with other materials. When defined in parallel with other materials it is ignored.
REFERENCES:
See Eqn 9 in G. Pekcan, J.B.Mander abd S.S. Chen, “Fundamental Considerations for the Design of Non-Linear Viscous Dampers”, Earthqauke Engineering & Structural Dynamics 28,1405-1425 (1999)
Code Developed by: Mehrdad Sasani, NEU
- This material can not be combined in parallel/series with other materials. When defined in parallel with other materials it is ignored.