View source for Concrete02 Material -- Linear Tension Softening

{{CommandManualMenu}}

{| 
| style="background:yellow; color:black; width:800px" | '''uniaxialMaterial Concrete02 $matTag $fpc $epsc0 $fpcu $epsU $lambda $ft $Ets'''
|}

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{|
|  style="width:150px" | '''$matTag ''' || integer tag identifying material
|-
|  '''$fpc ''' || concrete compressive strength at 28 days (compression is negative)*
|-
|  '''$epsc0 ''' || concrete strain at maximum strength*
|-
|  '''$fpcu ''' || concrete crushing strength *
|-
|  '''$epsU ''' || concrete strain at crushing strength*
|-
| '''$lambda ''' || ratio between unloading slope at $epscu and initial slope
|-
| '''$ft ''' || tensile strength
|- 
| '''$Ets ''' || tension softening stiffness (absolute value) (slope of the linear tension softening branch)
|}


NOTE:

*Compressive concrete parameters should be input as negative values.

*The initial slope for this model is (2*$fpc/$epsc0)


REFERENCE:

Mohd Hisham Mohd Yassin, "Nonlinear Analysis of Prestressed Concrete Structures under Monotonic and Cycling Loads", PhD dissertation, University of California, Berkeley, 1994.


[[Image:Concrete02.jpg]]

Comparison of Hysteretic Stress-Strain Relation for Concerete01 versus Concrete02 materials.

[[Image:Concrete02Hysteretic.jpg]]


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Code Developed by: <span style="color:blue"> Filip Filippou, UC Berkeley </span>

Images Developed by: <span style="color:blue"> Silvia Mazzoni </span>