ShellNL
This command is used to construct a ShellNL element object, a lagrangian nine-noded shell element.
element ShellNL $eleTag $node1 $node2 ... $node9
$secTag
eleTag
|
unique element object tag |
$node1 … $node9 |
nine nodes defining element boundaries, input is the typical, firstly four corner nodes counter-clockwise, then mid-side nodes counter-clockwise and finally the central node. |
secTag
|
tag associated with previously-defined SectionForceDeformation object. Currently must be either a PlateFiberSection, or ElasticMembranePlateSection |
NOTE:
- The valid queries to a Quad element when creating an ElementRecorder object are ‘forces’, ‘stresses,’ and ‘material $matNum matArg1 matArg2 …’ Where $matNum refers to the material object at the integration point corresponding to the node numbers in the isoparametric domain.
Examples
<pre> set t 10.0 model basic -ndm 3 -ndf 6 nDMaterial ElasticIsotropic 1 200000 0.3 nDMaterial PlateFiber 2 1 section PlateFiber 3 2 $t element ShellNL 1 1 27 29 3 14 28 16 2 15 3 </pre>
REFERENCES:
Zienkiewicz o.c., Taylor r.l. vol. 2. The finite element method. Solid mechanics. Elsevier 2000
Code Developed by: Leopoldo Tesser, Diego A. Talledo