This command is used to construct a standard four-node tetrahedron element objec with one-point Gauss integration.
|element FourNodeTetrahedron $eleTag $node1 $node2 $node3 $node4 $matTag <$b1 $b2 $b3>|
|$eleTag||unique element object tag|
|four nodes defining element boundaries, input order is shown in the figure.|
|$matTag||tag of nDMaterial|
|'$b1 $b2 $b3||body forces in global x,y,z directions|
Because sometimes bricks will give you headaches! Use this if you don't care much about the stress/strain fields (tets are notoriously bad). Otherwise, you can use the 10-node quadratic tetrahedron (in development).
- The valid queries to a FourNodeTetrahedron element when creating an ElementRecorder object are 'forces', 'stresses,' ('strains' version > 2.2.0) 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.
- This element can only be defined in -ndm 3 -ndf 3
Code Developed by José A. Abell at Universidad de los Andes, Chile