3.1.5.34. Damper Material Wrapper

This command is used to construct a Damper uniaxial material wrapper. The wrapper uses the stress-strain response of any UniaxialMaterial as a stress versus strain-rate relationship for damping. The conversion is done by passing strain rate as strain and the material tangent as the damping tangent in the state determination.

uniaxialMaterial Damper $matTag $otherTag <-factors $fact1 $fact2 ...>

Argument	Type	Description
$matTag	integer	unique material tag
$otherTag	integer	tag of a previously-defined UniaxialMaterial
$fact1 …	float	(optional) factors for multiple materials

Example

1. Tcl Code

uniaxialMaterial Elastic 1 100.0
uniaxialMaterial Damper 2 1

2. Python Code

ops.uniaxialMaterial('Elastic', 1, 100.0)
ops.uniaxialMaterial('Damper', 2, 1)

Code developed by: Michael H. Scott