DoddRestrepo: Difference between revisions

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|  '''$Fy ''' || Yield strength
|  '''$Fy ''' || Yield strength
|-
|-
|  '''$Fsu ''' || Stress at peak load
|  '''$Fsu ''' || Ultimate tensile strength (UTS)
|-
|-
|  '''$ESH ''' || Strain at initiation of strain hardening
|  '''$ESH ''' || Strain at initiation of strain hardening
|-
|-
|  '''$ESU''' || Strain at peak Load
|  '''$ESU''' || Tensile strain at the UTS
|-    
|-    
|  '''$Youngs ''' || Modulus of elasticity
|  '''$Youngs ''' || Modulus of elasticity
|-
|-
|  '''$ESHI ''' || Strain for a point on strain hardening curve
|  '''$ESHI ''' || Strain for a point on strain hardening curve, recommended range of values for ESHI:  [ (ESU + 5*ESH)/6, (ESU  + 3*ESH)/4]
|-
|-
|  '''$FSHI''' ||  Stress at point on strain hardening curve corresponding to ESHI
|  '''$FSHI''' ||  Stress at point on strain hardening curve corresponding to ESHI
|-
|-
|  '''$OmegaFac''' || Optional: Defauult = 1.0.
|  '''$OmegaFac''' || Bauschinger curve roundness factor. Range: [0.75, 1.15].  Largest value tends to near bilinear Bauschinger curve.  Default = 1.0.
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|-
|}
|}

Revision as of 01:00, 6 November 2011




This command is used to construct a Dodd-Restrepo steel material

uniaxialMaterial Dodd_Restrepo $tag $Fy $Fsu $ESH $ESU $Youngs $ESHI $FSHI <$OmegaFac>

$matTag Integer tag identifying material
$Fy Yield strength
$Fsu Ultimate tensile strength (UTS)
$ESH Strain at initiation of strain hardening
$ESU Tensile strain at the UTS
$Youngs Modulus of elasticity
$ESHI Strain for a point on strain hardening curve, recommended range of values for ESHI: [ (ESU + 5*ESH)/6, (ESU + 3*ESH)/4]
$FSHI Stress at point on strain hardening curve corresponding to ESHI
$OmegaFac Bauschinger curve roundness factor. Range: [0.75, 1.15]. Largest value tends to near bilinear Bauschinger curve. Default = 1.0.

Examples:


References:

Code Developed by : L.L. Dodd & J. Restrepo