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Corotational Truss Element

This command is used to construct a Corotational Truss (CorotTruss) element object. A corotational formulation adopts a set of corotational axes which rotate with the element, thus taking into account an exact geometric transformation between local and global frames of reference.

There are two ways to construct a Corotational Truss element object:

One way is to specify an area and a UniaxialMaterial identifier:

element corotTruss $eleTag $iNode $jNode $A $matTag

the other is to specify a Section identifier:

element corotTruss $eleTag $iNode $jNode $secTag

$eleTag

unique element object tag

$iNode $jNode

end nodes

$A

cross-sectional area of element

$matTag

tag associated with previously-defined UniaxialMaterial object

$secTag

tag associated with previously-defined Section object

NOTE: When constructed with a UniaxialMaterial object, the truss element considers strain-rate effects, and is thus suitable for use as a damping element.

The valid queries to a corotational truss element when creating an ElementRecorder object are 'axialForce,' 'stiff,' 'material $matNum matArg1 matArg2...,' 'section $secNum sectArg1 sectArg2...'

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