4.2.1.1. zeroLength ElementΒΆ
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element
('zeroLength', eleTag, *eleNodes, '-mat', *matTags, '-dir', *dirs, <'-doRayleigh', rFlag=0>, <'-orient', *vecx, *vecyp>) This command is used to construct a zeroLength element object, which is defined by two nodes at the same location. The nodes are connected by multiple UniaxialMaterial objects to represent the force-deformation relationship for the element.
eleTag
(int)unique element object tag eleNodes
(list (int))a list of two element nodes matTags
(list (int))a list of tags associated with previously-defined UniaxialMaterials dirs
(list (int))a list of material directions:
- 1,2,3 - translation along local x,y,z axes, respectively;
- 4,5,6 - rotation about local x,y,z axes, respectively
rFlag
(float)optional, default = 0 NO RAYLEIGH DAMPING (default), 1 include Rayleigh damping vecx
(list (float))a list of vector components in global coordinates defining local x-axis (optional) vecyp
(list (float))a list of vector components in global coordinates defining vector yp which lies in the local x-y plane for the element. (optional)
Note
If the optional orientation vectors are not specified, the local element axes coincide with the global axes. Otherwise the local z-axis is defined by the cross product between the vectors x and yp vectors specified on the command line.
See also