SAE Standard Fatigue Data File format

#SAE Standard Fatigue Data File format #
Pick one: #FDE_plot #FDE_fit # #
#
# Fitted Curve.
#FileType= strain_life
#DataType= fitted
#Name= SAE41B17M_(PS19)
#Name= AisiIt_78
#Name= PS19_steel
#Stress_units= MPa
#Strain_units= strain
#Sy= 863.1
#Su= 904.0
#E= 208000. # = initial average.   Reported as 216000
#monotonic_K= 1060.2
#monotonic_n= 0.038
#LowerYield= 860.9
#UpperYield= 864.1
#MaterialForm= bar
#FailureDef= 50% load drop
#Hardness, Rockwell C= 30
#BHN= 286  #originally reported as 277 (assumed Rc=30 is corrected)
#Basic Oxygen= False
#Electric Furnace= True
#Vacuum Degas= False
#Ladle Refined= True
#Ingot Cast= True
#Continuous Cast= False
#Martensite, %= 100
#Carbon, %= 0.19
#Manganese, %= 1.13
#Phosphorus, %= 0.01
#Sulfur, %= 0.02
#Silicon, %= 0.27
#Copper, %= 0.23
#Nickel, %= 0.11
#Chromium, %= 0.52
#Molybdenum, %= 0.12
#Vanadium, %= 0.01
#Columbium/Niobium, %= 0.00
#Aluminum, %= 0.026
#Lead, %= 0.000
#Titanium, %= 0.047
#Calcium, %= 0.00
#Cobalt, %= 0.010
#Zirconium, %= 0.000
#Boron, %= 0.0026
#Tin, %= 0.010
#Nitrogen, ppm= 85
# SAE41B17M_ AisiIt_78  BHN=  277 Fn=    0
#          Monotonic Props.       Cyclic Props.
#ELAS. MOD.= 30168. KSI,  208. GPA     K'        = 139.2 KSI,   960.MPA
#YIELD,0.2%=   125. KSI,  863. MPA     N'        = 0.0677
#ULT. STRG.=   131. KSI,  904. MPA     F. STRG COEF=  148.6 KSI, 1025.MPA
#K       =      0.0 KSI,      0. MPA   F.STRG EXP, b=-0.0540
#N            = 0.0000                 FAT DUCT COEF=   2.6260
#RED. IN AREA =  0.0                   F.DUCT EXP, c=-0.7970
#T. FRAC. STG.=   0.0 KSI,    0. MPA   Exp Cyc Yld  =   91. Ksi, 630.MPA
#T. FRAC. STR.= 0.000                  Fit Cyc Yld  =   95. Ksi, 653.MPA
#No. fatigue data points=   15
#
# NOTE!! The Following Points are <b>FITTED DATA:</b>
#NOTE!! Fitted Stress computed using Experm. K' and n'
#NOTE!! Fatigue limit points fitted manually. FAC may09
#Stress_Units= MPa
# Total Strain   2Nf  Stress  Mean   Plastic Strain   Initial
#    Amp               Amp   Stress      Amp        Elastic Mod.
   2.63093          1  1036.1      0.   2.62595    208000. #Fitted_point
   1.51617          2   999.9      0.   1.51137    208000. #Fitted_point
   0.73271          5   954.0      0.   0.72812    208000. #Fitted_point
   0.42347         10   920.7      0.   0.41904    208000. #Fitted_point
   0.24542         20   888.5      0.   0.24115    208000. #Fitted_point
   0.12021         50   847.7      0.   0.11614    208000. #Fitted_point
   0.07074        100   818.0      0.   0.06680    208000. #Fitted_point
   0.04220        200   789.4      0.   0.03841    208000. #Fitted_point
   0.02207        500   753.0      0.   0.01845    208000. #Fitted_point
   0.01407       1000   726.5      0.   0.01058    208000. #Fitted_point
   0.00941       2000   700.8      0.   0.00604    208000. #Fitted_point
   0.00607       5000   667.8      0.   0.00286    208000. #Fitted_point
   0.00470      10000   643.5      0.   0.00161    208000. #Fitted_point
   0.00387      20000   619.4      0.   0.00089    208000. #Fitted_point
   0.00322      50000   587.8      0.   0.00039    208000. #Fitted_point
   0.00292     100000   563.9      0.   0.00021    208000. #Fitted_point
   0.00271     200000   540.5      0.   0.00011    208000. #Fitted_point
   0.00250     500000   511.0      0.   0.00004    208000. #Fitted_point
   0.00238    1000000   490.2      0.   0.00002    208000. #Fitted_point
    .0023     2000000   452.       3.8  0.0        205000. #Fitted_point manually
    .0023    10000000   452.       3.8  0.0        205000. #Fitted_point manually
#
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