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Twenty Node Brick Element

The element is used to construct a twenty-node three dimensional element object

element Brick20N $eletag $node1 $node2 $node3 $node4 $node5 $node6 $node7 $node8 $node9 $node10 $node11 $node12 $node13 $node14 $node15 $node16 $node17 $node18 $node19 $node20 $matTag $bf1 $bf2 $bf3 $massDen


unique element object tag

$node1 $node2 $node3 $node4 $node5 $node6 $node7 $node8 $node9 $node10 $node11 $node12 $node13 $node14 $node15 $node16 $node17 $node18 $node19 $node20

twenty node coordinates, input order is shown in the figure


material tag associated with previsouly-defined NDMaterial object

$bf1 $bf2 $bf3

body force in the direction of global coordinates x, y and z


mass density (mass/volume)

The valid queries to a Brick20N element when creating an ElementRecorder object are 'force,' 'stiffness,' stress', 'gausspoint' or 'plastic'. The output is given as follows:


the six stress components from each Gauss points are output by the order: sigma_xx, sigma_yy, sigma_zz, sigma_xy, sigma_xz,sigma_yz


the coordinates of all Gauss points are printed out


the equivalent deviatoric plastic strain from each Gauss point is output in the same order as the coordinates are printed

Node Numbering for Twenty-Node Three-Dimensional Element

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