YamamotoBiaxialHDR Element

This command is used to construct a YamamotoBiaxialHDR element object, which is defined by two nodes. This element can be used to represent the isotropic behavior of high-damping rubber bearing in the local y-z plane.

element YamamotoBiaxialHDR $eleTag $iNode $jNode $Tp $DDo
        $DDi $Hr <-coRS $cr $cs> <-orient <$x1 $x2 $x3> $y1 $y2
        $y3> <-mass $m>

eleTag

unique element object tag

inode jnode

end nodes

Tp

compound type

= 1 : X0.6R manufactured by Bridgestone corporation.

DDo

outer diameter [m]

DDi

bore diameter [m]

Hr

total thickness of rubber layer [m]

Optional Data

cr cs

coefficients for shear stress components of \(\tau_{r}\) and <math>_{s}</math>

x1 x2 x3

vector components in global coordinates defining local x-axis

yp1 yp2 yp3

vector components in global coordinates defining vector yp which lies in the local x-y plane for the element

m

element mass [kg]

NOTES:

  1. The valid queries to a YamamotoBiaxialHDR element when creating an ElementRecorder object are ‘globalForce’, ‘localForce’, ‘basicForce’, ‘localDisplacement’ and ‘basicDeformation’.

    YamamotoBiaxialHDR_Model.png

Examples

element YamamotoBiaxialHDR 1 1 2 1 1.300 0.030 0.261 -orient 0 0 1 1 0 0

YamamotoBiaxialHDR_Sample.tcl, YamamotoBiaxialHDR_input_X.tcl, YamamotoBiaxialHDR_input_Y.tcl

Bidirectional-Disp_pattern.png &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Unidirectional.png

Bidirectional-X.png &nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Bidirectional-Y.png

REFERENCES:

Masashi Yamamoto, Shigeo Minewaki, Harumi Yoneda and Masahiko Higashino, “Nonlinear behavior of high-damping rubber bearings under horizontal bidirectional loading: full-scale tests and analytical modeling”, Earthquake Engineering and Structural Dynamics, 41, 1845-1860, 2012.


Code Developed by: mkiku

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