Bbar Plane Strain Quad Element

This command is used to construct a four-node quadrilateral element object, which uses a bilinear isoparametric formulation along with a mixed volume/pressure B-bar assumption. This element is for plane strain problems only.

element bbarQuad $eleTag $iNode $jNode $kNode $lNode $thick $matTag

$eleTag, integer, unique element object tag $iNode $jNode $kNode $lNode, integer, four nodes defining element boundaries, input in counter-clockwise order around the element. $thick, float, element thickness $matTag, integer, tag of nDMaterial

Note

PlainStrain only.

The valid queries to a Quad element when creating an ElementRecorder object are 'forces', 'stresses,' and 'material $matNum matArg1 matArg2 ...' Where $matNum refers to the material object at the integration point corresponding to the node numbers in the isoparametric domain.

Code Developed by: Edward Love, Sandia National Laboratories