Quad Element: Difference between revisions
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(Created page with '{{CommandManualMenu}} This command is used to construct a FourNodeQuad element object which uses a bilinear isoparametric formulation. {| | style="background:yellow; color:bla...') |
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| style="background: | | style="background:lime; color:black; width:800px" | '''element quad $eleTag $iNode $jNode $kNode $lNode $thick $type $matTag <$pressure $rho $b1 $b2>''' | ||
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| '''$rho''' || element mass density (per unit volume) from which a lumped element mass matrix is computed (optional, default=0.0) | | '''$rho''' || element mass density (per unit volume) from which a lumped element mass matrix is computed (optional, default=0.0) | ||
|- | |- | ||
| '''$b1 | | '''$b1 $b2''' || constant body forces defined in the isoparametric domain (optional, default=0.0) | ||
|} | |} | ||
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Code Developed by: <span style="color:blue"> | Code Developed by: <span style="color:blue"> Micheal Scott, Oregon State </span> | ||
Latest revision as of 17:48, 20 September 2012
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This command is used to construct a FourNodeQuad element object which uses a bilinear isoparametric formulation.
| element quad $eleTag $iNode $jNode $kNode $lNode $thick $type $matTag <$pressure $rho $b1 $b2> |
| $eleTag | unique element object tag |
| $iNode $jNode $kNode $lNode | four nodes defining element boundaries, input in counter-clockwise order around the element. |
| $thick | element thickness |
| $type | string representing material behavior. The type parameter can be either "PlaneStrain" or "PlaneStress." |
| $matTag | tag of nDMaterial |
| $pressure | surface pressure (optional, default = 0.0) |
| $rho | element mass density (per unit volume) from which a lumped element mass matrix is computed (optional, default=0.0) |
| $b1 $b2 | constant body forces defined in the isoparametric domain (optional, default=0.0) |
NOTE:
- Consistent nodal loads are computed from the pressure and body forces.
- 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.
EXAMPLE:
Code Developed by: Micheal Scott, Oregon State