SimpleContact2D

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This command is used to construct a SimpleContact2D element object.

element SimpleContact2D $eleTag $iNode $jNode $sNode $lNode $matTag $gTol $fTol

$eleTag	unique integer tag identifying element object
$iNode $jNode	master nodes
$sNode	slave node
$lNode	Lagrange multiplier node
$matTag	unique integer tag associated with previously-defined nDMaterial object
$gTol	gap tolerance
$fTol	force tolerance

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The SimpleContact2D element is a two-dimensional node-to-segment contact element which defines a frictional contact interface between two separate bodies. The master nodes are the nodes which define the endpoints of a line segment on the first body, and the slave node is a node from the second body. The Lagrange multiplier node is required to enforce the contact condition. This node should not be shared with any other element in the domain.

NOTE:

1. The SimpleContact2D element has been written to work exclusively with the ContactMaterial2D nDMaterial object.
2. The valid recorder queries for this element are:
   1. force - returns the contact force acting on the slave node in vector form.
   2. frictionforce - returns the frictional force acting on the slave node in vector form.
   3. forcescalar - returns the scalar magnitudes of the normal and tangential contact forces.

EXAMPLE:

element SimpleContact2D 1 1 2 3 4 1 1.0e-10 1.0e-10

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Code Developed by: Kathryn Petek, Pedro Arduino, & Peter Mackenzie-Helnwein, at the University of Washington