BbarBrickWithSensitivity Command

• Sensitivity_Command_Manual
  • General Commands
    • reliability
    • parameter
    • addToParameter
    • updateParameter
    • sensitivityIntegrator
    • sensitivityAlgorithm
    • recorder
  • Material Commands
    • uniaxialMaterial
    • nDmaterial
  • Section Commands
    • Fiber
    • Elastic
    • Aggregator
  • Element Commands
    • dispBeamColumnWithSensitivity
    • quadWithSensitivity
    • bbarBrickWithSensitivity
  • Constraint Commands
    • Transformation

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This command is used to construct an eight-node 3D brick element object based on a trilinear isoparametric formulation.

element bbarBrickWithSensitivity $eleTag $node1 $node2 $node3 $node4 $node5 $node6 $node7 $node8 $matTag

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$eleTag	unique element object tag.
$node1 - $node8	eight nodes defining element boundaries (numbered as shown in the figure below).
$matTag	tag associated with previously-defined nDMaterial object.

File:Numbering of nodes for the B-bar brick element

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Currently, there are no sensitivity parameters in the ‘bbarBrickWithSensitivity’ element command.