ShellNLDKGQ

This command is used to construct a ShellNLDKGQ element accounting for the geometric nonlinearity of large deformation using the updated Lagrangian formula, which is developed based on the ShellDKGQ element.

element ShellNLDKGQ $eleTag $iNode $jNode $kNode $lNode $secTag
eleTag

unique element object tag

iNode jNode kNode lNode

four nodes defining element boundaries, input in clockwise or counter-clockwise order around the element.

secTag

tag associated with previously-defined SectionForceDeformation object. Currently can be a PlateFiberSection, a ElasticMembranePlateSection and a LayeredShell section.

NOTE:

  1. Three examples of this element can be found on the following URL

http://www.luxinzheng.net/download/OpenSEES/Examples_of_NLDKGQ_element.htm

References:

[1]

Lu XZ, Xie LL, Guan H, Huang YL, Lu X, A shear wall element for nonlinear seismic analysis of super-tall buildings using OpenSees, Finite Elements in Analysis & Design, 2015, 98: 14-25.

Code developed by: Lisha Wang, Tsinghua University, Prof. Xinzheng Lu, Tsinghua University, Linlin Xie, Tsinghua University, Prof. Song Cen, Tsinghua University and Prof. Quan Gu, Xiamen University