SAE Standard Fatigue Data File format

#SAE Standard Fatigue Data File format #
Pick one: #FDE_plot #FDE_fit # #
#
# Fitted Curve.  Mostly manual fit.
# SAE41B17M_ Aisi_It_79 BHN=  627 
# Thru Carburized Simulating carburized case. Test: UoToledo.
# Rc= 59 Timken Heat Y5822 41B17M (PS19) Ingot Cast to 711X711 mm ingots,
# Rough Rolled to 279 X 375 mm blooms, HotRolled 31.7mm bar
# 100%Martensite, Inclusions TypeA=1.5Thin, TypeB,C=0, TypeD=1.5Thin
# saedigcurve_v2.2.f starts.
#FileType= strain_life
#DataType= fitted
#Name= SAE41B17M_(PS19)
#Name= Aisi_It_79
#Stress_units= MPa
#Strain_units= strain
#Sy= 1727.8
#Su= 1876.8
#E= 204500
#monotonic_K= 3468.8
#monotonic_n= 0.110
#MaterialForm= bar
#FailureDef= 50% load drop
#BHN= 627
#Hardness, Rockwell C= 59
# Removed from original data:
#StrAmp  2Nf StsAmp  So CalcPlasStr InitialModulus
#0.0000        0    0    0.0 0.00000 206000 #OGIT
#0.0000        0    0    0.0 0.00000 210000 #OGIT
#0.0100        6 1853  -115.2 0.00088 204000 #AKP  knife edge
#0.0080      314 1592   20.5 0.00022 208000 #AKP  knife edge
#Basic Oxygen= True
#Electric Furnace= False
#Vacuum Degas= False
#Ladle Refined= True
#Ingot Cast= False
#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_ Aisi_It_79 BHN=  627 Fn=    0
#          Monotonic Props.       Cyclic Props.
#ELAS. MOD.= 29660. KSI,  205. GPA     K'        =****** KSI,115131.MPA
#YIELD,0.2%=   251. KSI, 1728. MPA     N'        = 0.5547
#ULT. STRG.=   272. KSI, 1877. MPA     F. STRG COEF=  382.2 KSI, 2635.MPA
#K       =      0.0 KSI,      0. MPA   F.STRG EXP, b=-0.0963
#N            = 0.0000                 FAT DUCT COEF=   0.0011
#RED. IN AREA =  0.0                   F.DUCT EXP, c=-0.1736
#T. FRAC. STG.=   0.0 KSI,    0. MPA   Exp Cyc Yld  =  531. Ksi,3664.MPA
#T. FRAC. STR.= 0.000                  Fit Cyc Yld  =  268. Ksi,1846.MPA
#No. fatigue data points=   16
#
# NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n'(not used)
#NOTE!! Data fited manually.  FAC may09

#Stress_Units= MPa
# Total Strain   2Nf  Stress  Mean   Plastic Strain   Initial
#    Amp               Amp   Stress      Amp        Elastic Mod.
   0.01399          1  1940.0      0.   0.00450    204500. #Fitted_point
   0.00940         50  1750.5      0.   0.00084    204500. #Fitted_point
    .0050        2608 1060  40.1 0.00000  211000 #IGL
0.0040          24400 829    0.0 0.00000    0000 #IGL
0.0033         140000 667    0.0 0.00000  0000 #IGL
0.0033       10000000 667    0.0 0.00000  0000 #Runout
#
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