SAE Standard Fatigue Data File format

#SAE Standard Fatigue Data File format #
Pick one: #FDE_plot #FDE_fit # #
#
# Fitted Curve !
# SAE9254 Quenched +Tempered HRc=51 100%Martensite
# Material cyclically softens substantially.
# BasicOxygen, LadleRefined, ConCast(300x600 bloom), HotRolled to 46mm bar
# Stelco. Spec. machined, heat treated Aust. 1700F, Oil Quenched,
# Temp 715F and then final polish.
# Test: UoWaterloo, A.Rteil and T.Topper, Apr2006
# saedigcurve_v2.2.f starts.
#FileType= strain_life
#DataType= fitted
#Name= SAE9254
#Name= Quench+Temp
#Name= AisiIt_86
#Stress_units= MPa
#Strain_units= strain
#Sy= 1841.0
#Su= 2020.0
#E= 205700
#monotonic_K= 2511.0
#monotonic_n= 0.050
#FractureStrain= .71
#FractureStress= 3644.
#%RA= 51.
#MaterialForm= bar
#FailureDef= 50% load drop
#Hardness, Rockwell C= 51
#Bhn= 496.
#Basic Oxygen= True
#Electric Furnace= False
#Vacuum Degas= False
#Ladle Refined= True
#Ingot Cast= False
#Continuous Cast= True
#Martensite, %= 100
#Carbon, %= 0.57
#Manganese, %= 0.71
#Phosphorus, %= 0.011
#Sulfur, %= 0.009
#Silicon, %= 1.57
#Copper, %= 0.01
#Nickel, %= 0.01
#Chromium, %= 0.72
#Molybdenum, %= 0.005
#Vanadium, %= 0.01
#Columbium/Niobium, %= 0.00
#Aluminum, %= 0.028
#Titanium, %= 0
#Calcium, %= 0.00
#Zirconium, %= 0.000
#Boron, %= 0
#Nitrogen, ppm= 70
# SAE9254    Quench+Tem BHN=  496 Fn=    0
#          Monotonic Props.       Cyclic Props.
#ELAS. MOD.= 29834. KSI,  206. GPA     K'        = 617.3 KSI,  4256.MPA
#YIELD,0.2%=   267. KSI, 1841. MPA     N'        = 0.1797
#ULT. STRG.=   293. KSI, 2020. MPA     F. STRG COEF=  434.8 KSI, 2997.MPA
#K       =      0.0 KSI,      0. MPA   F.STRG EXP, b=-0.0979
#N            = 0.0000                 FAT DUCT COEF=   0.1422
#RED. IN AREA = 51.0                   F.DUCT EXP, c=-0.5445
#T. FRAC. STG.= 528.5 KSI, 3644. MPA   Exp Cyc Yld  =  202. Ksi,1393.MPA
#T. FRAC. STR.= 0.710                  Fit Cyc Yld  =  203. Ksi,1397.MPA
#No. fatigue data points=   18
#
# NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n'
# NOTE!! Adjusted shortlife and fatigue limit manually.  FAC Aug2009
#Stress_Units= MPa
# Total Strain   2Nf  Stress  Mean   Plastic Strain   Initial
#    Amp               Amp   Stress      Amp        Elastic Mod.
    .71             1  3644.       0.    .692      205700  #Fitted_point manually
   0.01072       1000  1534.9      0.   0.00326    205700. #Fitted_point
   0.00919       2000  1428.8      0.   0.00225    205700. #Fitted_point
   0.00771       5000  1301.1      0.   0.00138    205700. #Fitted_point
   0.00686      10000  1213.1      0.   0.00096    205700. #Fitted_point
   0.00618      20000  1132.0      0.   0.00067    205700. #Fitted_point
   0.00545      50000  1034.0      0.   0.00042    205700. #Fitted_point
   0.00499     100000   966.1      0.   0.00030    205700. #Fitted_point
   0.00460     200000   902.9      0.   0.00021    205700. #Fitted_point
   0.00415     500000   826.0      0.   0.00013    205700. #Fitted_point
   0.00385    1000000   772.3      0.   0.00009    205700. #Fitted_point
   0.00358    2000000   722.1      0.   0.00007    205700. #Fitted_point
   0.00358   10000000   722.1      0.   0.00007    205700. #Fitted_point manually
#
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