AC-08-0008 LCF Application Software

AC-08-0008 LCF application is intended to perform Low Cycle Fatigue test (as per ASTM E606) under MTL-7 environment with 2350/2360/2370 controller.

The user interface includes specimen description, loading parameters, pump controls, test run/stop, graph display, numeric readouts of several relevant

test parameters. Test descriptions and test settings are available as panels accessed by clicking on relevant tabs or pull down menu

 LCFApplication1                  LCFApplication2
 Standard Features
  • Tests can be done in stress control, total strain control and plastic strain control
  • Online display of loading modulus, unloading modulus, K’, n’ yield stress, plastic strain, max-min stress and strain.
  • Limit settings on stroke and strain
  • Auto data acquisition settings.
  • Online graphs of stress vs strain and transients.
  • Offline post processing program to analyze the results in MS Excel.
  • Option to save the test profiles.  • Option to remove residual strain.
  • Option to add strain to gage length.
  • Option to terminate the test at specified modulus drop, stress drop and/or increase in strain.


LCF Results: Stress-Strain Plot and S-N Curve

 LCFGraph1                          LCFGraph2

LCF Result Table:

   Initial  Halflife  Final  
 Stress Amp  657.616  598.145  539.585  MPa
 Strain Amp  0.897  0.896  0.896  %
 Pl. Strain  0.726  0.742  0.756  %
 Stress Mean  -17.765  -7.37  -23.471  MPa
 Strain Mean  -0.001  0  0  %
 Un. Modulus  183.004  183.575  181.756  GPa
 E-Unl/Ld  0.914  0.898  0.857  
 0.2% YS  587.77  533.901  452.684  MPa
 0.02% YS  427.148  392.245  300.879  MPa
 Strain Hard. Coeff.  1391.96  1227.289  1074.3  MPa
 Strain Hard. Exp.  0.139  0.134  0.128  
 Energy  16.214  15.11  12.892  MPa.e/e















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