Viscous Material: Difference between revisions

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1. This material can only be assigned to truss and zeroLength elements.
1. This material can only be assigned to truss and zeroLength elements.
2. This material can not be combined in parallel/series with other materials. When defined in parallel with other materials it is ignored.
   
   



Revision as of 01:13, 14 November 2012




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:

1. This material can only be assigned to truss and zeroLength elements. 2. 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