Concrete01 Material -- Zero Tensile Strength: Difference between revisions

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{{CommandManualMenu}}
This command is used to construct a uniaxial Kent-Scott-Park concrete material object with degraded linear unloading/reloading stiffness according to the work of Karsan-Jirsa and no tensile strength. (REF: Fedeas).
This command is used to construct a uniaxial Kent-Scott-Park concrete material object with degraded linear unloading/reloading stiffness according to the work of Karsan-Jirsa and no tensile strength. (REF: Fedeas).


{|  
{|  
| style="background:yellow; color:black; width:800px" | '''uniaxialMaterial Concrete01 $matTag $fpc $epsc0 $fpcu $epsU'''
| style="background:lime; color:black; width:800px" | '''uniaxialMaterial Concrete01 $matTag $fpc $epsc0 $fpcu $epsU'''
|}
|}


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NOTE:
NOTE:


*Compressive concrete parameters should be input as negative values.
*Compressive concrete parameters should be input as negative values (if input as positive, they will be converted to negative internally).


*The initial slope for this model is (2*$fpc/$epsc0)
*The initial slope for this model is (2*$fpc/$epsc0)
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Typical Hysteretic Stress-Strain Relation for material
Typical Hysteretic Stress-Strain Relation for material
EXAMPLE:
uniaxialMaterial Concrete01 1 -4.0 -0.002 0.0 -0.005; # the concrete material with tag 1 reaches compressive strength of 4.0 at strain of 0.002 and reaches ultimate strength of 0.0 at strain of 0.005.


[[Image:Concrete01Hysteretic.jpg]]
[[Image:Concrete01Hysteretic.jpg]]

Latest revision as of 18:25, 17 February 2014




This command is used to construct a uniaxial Kent-Scott-Park concrete material object with degraded linear unloading/reloading stiffness according to the work of Karsan-Jirsa and no tensile strength. (REF: Fedeas).

uniaxialMaterial Concrete01 $matTag $fpc $epsc0 $fpcu $epsU

$matTag integer tag identifying material
$fpc concrete compressive strength at 28 days (compression is negative)*
$epsc0 concrete strain at maximum strength*
$fpcu concrete crushing strength *
$epsU concrete strain at crushing strength*

NOTE:

  • Compressive concrete parameters should be input as negative values (if input as positive, they will be converted to negative internally).
  • The initial slope for this model is (2*$fpc/$epsc0)


Typical Hysteretic Stress-Strain Relation for material


EXAMPLE:

uniaxialMaterial Concrete01 1 -4.0 -0.002 0.0 -0.005; # the concrete material with tag 1 reaches compressive strength of 4.0 at strain of 0.002 and reaches ultimate strength of 0.0 at strain of 0.005.



Code Developed by: Filip Filippou, UC Berkeley

Images Developed by: Silvia Mazzoni