3.1.5.12. Concrete02 Material – Linear Tension Softening

This command is used to construct a uniaxial concrete material as described in [Yassin1994] .. function:: uniaxialMaterial Concrete02 $matTag $fpc $epsc0 $fpcu $epsU $lambda $ft $Ets

Argument	Type	Description
$matTag	integer	integer tag identifying material.
$fpc	float	concrete compressive strength at 28 days (compression is negative)* .
$epsc0	float	concrete strain at maximum strength* .
$fpcu	float	concrete crushing strength*.
$epsU	float	concrete strain at crushing strength*.
$lambda	float	ratio between unloading slope at $epscu and initial slope.
$ft	float	tensile strength.
$ets	float	tension softening stiffness (absolute value) (slope of the linear tension softening branch)

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

Comparison with Concrete01

Code Developed by: Filip Filippou, UC Berkeley Images Developed by Silvia Mazzoni

Yassin1994

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