Bbar Brick Element: Difference between revisions

Latest revision as of 23:30, 20 August 2012

This command is used to construct an eight-node mixed volume/pressure brick element object, which uses a trilinear isoparametric formulation.

element bbarBrick $eleTag $node1 $node2 $node3 $node4 $node5 $node6 $node7 $node8 $matTag <$b1 $b2 $b3>

$eleTag	unique element object tag
$node1 $node2 $node3 $node4 $node5 $node6 $node7 $node8	eight nodes defining element boundaries, input order is shown in the figure.
$matTag	tag of nDMaterial
'$b1 $b2 $b3	body forces in global x,y,z directions

NOTE:

Note: Node numbering for this element is different from that for the eight-node brick (Brick8N) element.
The valid queries to a Quad element when creating an ElementRecorder object are 'forces', 'stresses,' ('strains' version > 2.2.0), 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.

EXAMPLE:

REFERENCES:

Code Developed by: Edward Love, Sandia National Laboratories

@@ Line 3: / Line 3: @@
 This command is used to construct an eight-node mixed volume/pressure brick element object, which uses a trilinear isoparametric formulation.
-{|
+{| $b1 $b2 $b3
-| style="background:yellow; color:black; width:800px" | '''element bbarBrick $eleTag $node1 $node2 $node3 $node4 $node5 $node6 $node7 $node8 $matTag'''
+| style="background:yellow; color:black; width:800px" | '''element bbarBrick $eleTag $node1 $node2 $node3 $node4 $node5 $node6 $node7 $node8 $matTag <$b1 $b2 $b3>'''
 |}