problem with getting stress-strain in fibers

[cvatansever]

Hello Everybody,

I am trying to get a moment-curvature curve of a section whose material is polymer fiber reinforced concrete. The stress-strain relationship of this material across the section is different and complex. So, I modeled the stress-strain relationship for both tension and compression sides using hysteretic material model.
After analysis, I can not get any stress-strain value of a fiber using recorder. Is there any idea to fix this problem ? Some data lines are as follows.

Thanks in advance,

Cuneyt,

set Fy1 3.820;
set Fy2 0.600;
set Fy3 0.500;

set eps1 0.00001375181;
set eps2 0.0001375189;
set eps3 0.025;

set Fyn1 -10.6250;
set Fyn2 -14.1667;
set Fyn3 -14.1668;

set epsn1 -0.001;
set epsn2 -0.002;
set epsn3 -0.0035;
#
section Fiber 5 {

element zeroLengthSection 1 1 2 5
patch rect 1 50 1 -$y1 -$z1 $y1 $z1
}
uniaxialMaterial Hysteretic 1 $Fy1 $eps1 $Fy2 $eps2 $Fy3 $eps3 $Fyn1 $epsn1 $Fyn2 $epsn2 $Fyn3 $epsn3 1 1.0 0 0;
...
...
recorder Element -file Data_mom_curve_2/Stress_Strain.out –time -ele 1 section 1 fiber 0.0 0.0 1 stressStrain