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:

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

    1. 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

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