Elastic Section: Difference between revisions

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This command allows the user to construct an ElasticSection.  The inclusion of shear deformations is optional.
This command allows the user to construct an ElasticSection.  The inclusion of shear deformations is optional.


{| style="background:yellow; color:black; width:800px"  
{| style="background:lime; color:black; width:800px"  
| '''section Elastic $secTag $E $A $Iz <$G $alpha>'''
| '''section Elastic $secTag $E $A $Iz <$G $alphaY>'''
|-
|-
| '''section Elastic $secTag $E $A $Iz $Iy $G $J <$alpha>'''
| '''section Elastic $secTag $E $A $Iz $Iy $G $J <$alphaY $alphaZ>'''
|}
|}


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| '''$J''' || torsional moment of inertia of section (required for 3D analysis)
| '''$J''' || torsional moment of inertia of section (required for 3D analysis)
|-
|-
| '''$alpha''' || shear shape factor (optional)
| '''$alphaY''' || shear shape factor along the local y-axis (optional)
|-
| '''$alphaZ''' || shear shape factor along the local z-axis (optional)
|}
|}


NOTES:
NOTES:
* The elastic section can be used in the nonlinear beam column elements. Sometimes when building the model it is useful to do so to check the model being built.
* The elastic section can be used in the nonlinear beam column elements, which is useful in the initial stages of developing a complex model.


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Code Developed by: <span style="color:blue"> fmk </span>
Code Developed by: <span style="color:blue"> fmk </span>

Latest revision as of 00:50, 1 June 2013




This command allows the user to construct an ElasticSection. The inclusion of shear deformations is optional.

section Elastic $secTag $E $A $Iz <$G $alphaY>
section Elastic $secTag $E $A $Iz $Iy $G $J <$alphaY $alphaZ>


$secTag unique section tag
$E Young's Modulus
$A cross-sectional area of section
$Iz second moment of area about the local z-axis
$Iy second moment of area about the local y-axis (required for 3D analysis)
$G Shear Modulus (optional for 2D analysis, required for 3D analysis)
$J torsional moment of inertia of section (required for 3D analysis)
$alphaY shear shape factor along the local y-axis (optional)
$alphaZ shear shape factor along the local z-axis (optional)

NOTES:

  • The elastic section can be used in the nonlinear beam column elements, which is useful in the initial stages of developing a complex model.

Code Developed by: fmk