SAE Standard Fatigue Data File format

#SAE Standard Fatigue Data File format #
Pick one: #FDE_plot #FDE_fit # #
#
# Fitted Curve!    
# SAE4620 Rc=29 Heat treat to Simulated Core for Carburized material
# ElecFurnace, ConCast(279x375mm), HotRolled to 48mmBar, Quenched
# and Tempered after rough machining, ASTM Grainsize 4 to 5
# 10%Ferrite, 45%Martensite, 45%Bainite
# Inclusions: TypeA=2.5Thin, TypeB,C,D=none, BHN=289, Rc=29
# Test: UoToledo: F.Yin, A.Fatemi, Oct.2001
# saedigcurve_v2.2.f starts.
#FileType= strain_life
#DataType= fitted
#Name= SAE4620
#Name= AisiIt_47
#Stress_units= MPa
#Strain_units= strain
#Sy= 687.5
#Su= 997.8
#E= 204800 (average of 16), original reported as: 208000
#monotonic_K= 1448.1
#monotonic_n= 0.109
#FractureStrain= 0.90
#FractureStress= 1530
#%RA= 58.2
#MaterialForm= bar
#FailureDef= 50% load drop
#BHN= 289
#Hardness, Rockwell C= 29
#Basic Oxygen= False
#Electric Furnace= True
#Vacuum Degas= False
#Ladle Refined= False
#Ingot Cast= False
#Continuous Cast= True
#Bainite, %= 45
#Martensite, %= 45
#Ferrite, %= 10
#ASTM Grain Size No. (Min to Max)= 4 to 5
#Carbon, %= 0.2
#Manganese, %= 0.58
#Phosphorus, %= 0.01
#Sulfur, %= 0.016
#Silicon, %= 0.21
#Copper, %= 0.16
#Nickel, %= 1.7
#Chromium, %= 0.15
#Molybdenum, %= 0.26
#Vanadium, %= 0.00
# SAE4620    AisiIt_47  BHN=  289 Fn=    0
#          Monotonic Props.       Cyclic Props.
#ELAS. MOD.= 29704. KSI,  205. GPA     K'        = 255.9 KSI,  1765.MPA
#YIELD,0.2%=   100. KSI,  688. MPA     N'        = 0.1740
#ULT. STRG.=   145. KSI,  998. MPA     F. STRG COEF=  219.6 KSI, 1514.MPA
#K       =      0.0 KSI,      0. MPA   F.STRG EXP, b=-0.0954
#N            = 0.0000                 FAT DUCT COEF=   0.4152
#RED. IN AREA = 58.2                   F.DUCT EXP, c=-0.5480
#T. FRAC. STG.= 221.9 KSI, 1530. MPA   Exp Cyc Yld  =   87. Ksi, 598.MPA
#T. FRAC. STR.= 0.900                  Fit Cyc Yld  =   88. Ksi, 603.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!! Fitted short life and fatigue limit manually. FAC July09
#Stress_Units= MPa
# Total Strain   2Nf  Stress  Mean   Plastic Strain   Initial
#    Amp               Amp   Stress      Amp        Elastic Mod.
    .90             1  1530.       0.   0.8925     204800.  #Fitted_point manually
   0.02           350   916.       0.    .01553    204800. #Fitted_point data
   0.01003       2000   742.1      0.   0.00640    204800. #Fitted_point
   0.00718       5000   678.6      0.   0.00387    204800. #Fitted_point
   0.00574      10000   634.1      0.   0.00264    204800. #Fitted_point
   0.00470      20000   592.7      0.   0.00181    204800. #Fitted_point
   0.00374      50000   542.0      0.   0.00109    204800. #Fitted_point
   0.00322     100000   506.7      0.   0.00075    204800. #Fitted_point
   0.00283     200000   473.7      0.   0.00051    204800. #Fitted_point
   0.00243     500000   433.6      0.   0.00031    204800. #Fitted_point
   0.00219    1000000   405.6      0.   0.00021    204800. #Fitted_point
   0.00200    2000000   379.4      0.   0.00015    204800. #Fitted_point
   0.00200   10000000   379.4      0.   0.000      204800. #Fitted_point manually
#
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