SAE Standard Fatigue Data File format

#SAE Standard Fatigue Data File format #
Pick one: #FDE_plot #FDE_fit # #
#
# Fitted Curve:
# SAE4140 Rc=40, AISI Iter 69, 100%Matensite
# ElecFurn. LadleRef., IngotCast, HotRoll to 57mm bar
# Specimens Q+ Temp.  Inclus.: no TypeA,B,C, TypeD=1.0
# Test: UoWaterloo
# saedigcurve_v2.2.f starts.
#FileType= strain_life
#DataType= fitted
#Name= SAE4140
#Name= AisiIt_69
#Stress_units= MPa
#Strain_units= strain
#Sy= 1341.0
#Su= 1474.2
#E= 201000
#monotonic_K= 1894.6
#monotonic_n= 0.056
#FractureStrain= 0.80
#FractureStress= 1786
#%RA= 52.5
#MaterialForm= bar
#FailureDef= 50% load drop
#Hardness, Rockwell C= 40
#BHN= 371
#Basic Oxygen= False
#Electric Furnace= True
#Vacuum Degas= False
#Ladle Refined= True
#Ingot Cast= True
#Continuous Cast= False
#Martensite, %= 100
#Carbon, %= 0.41
#Manganese, %= 0.96
#Phosphorus, %= 0.009
#Sulfur, %= 0.009
#Silicon, %= 0.23
#Copper, %= 0.20
#Nickel, %= 0.16
#Chromium, %= 0.99
#Molybdenum, %= 0.2
#Vanadium, %= 0.00
#Columbium/Niobium, %= 0.00
#Aluminum, %= 0.031
#Lead, %= 0.001
#Titanium, %= 0.003
#Calcium, %= 0.00
#Cobalt, %= 0.001
#Zirconium, %= 0.001
#Boron, %= 0.0004
#Tin, %= 0.009
#Nitrogen, ppm= 103
# SAE4140    AisiIt_69  BHN=  371 Fn=    0
#          Monotonic Props.       Cyclic Props.
#ELAS. MOD.= 29153. KSI,  201. GPA     K'        = 210.5 KSI,  1451.MPA
#YIELD,0.2%=   194. KSI, 1341. MPA     N'        = 0.0790
#ULT. STRG.=   214. KSI, 1474. MPA     F. STRG COEF=  212.7 KSI, 1466.MPA
#K       =      0.0 KSI,      0. MPA   F.STRG EXP, b=-0.0587
#N            = 0.0000                 FAT DUCT COEF=   1.1401
#RED. IN AREA = 52.5                   F.DUCT EXP, c=-0.7437
#T. FRAC. STG.= 259.0 KSI, 1786. MPA   Exp Cyc Yld  =  129. Ksi, 888.MPA
#T. FRAC. STR.= 0.800                  Fit Cyc Yld  =  129. Ksi, 888.MPA
#No. fatigue data points=   22
#
# NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n'
#NOTE!! Points near fatigue limit adjusted to fit data. FAC June09
#Stress_Units= MPa
# Total Strain   2Nf  Stress  Mean   Plastic Strain   Initial
#    Amp               Amp   Stress      Amp        Elastic Mod.
   1.14742          1  1114.7      0.   1.14188    201000. #Fitted_point
   0.68790          2  1094.4      0.   0.68245    201000. #Fitted_point
   0.35109          5  1068.1      0.   0.34578    201000. #Fitted_point
   0.21209         10  1048.6      0.   0.20687    201000. #Fitted_point
   0.12897         20  1029.5      0.   0.12385    201000. #Fitted_point
   0.06795         50  1004.9      0.   0.06295    201000. #Fitted_point
   0.04268        100   986.7      0.   0.03777    201000. #Fitted_point
   0.02751        200   968.8      0.   0.02269    201000. #Fitted_point
   0.01628        500   945.8      0.   0.01157    201000. #Fitted_point
   0.01156       1000   928.6      0.   0.00694    201000. #Fitted_point
   0.00867       2000   911.6      0.   0.00413    201000. #Fitted_point
   0.00645       5000   888.6      0.   0.00203    201000. #Fitted_point
   0.00546      10000   870.1      0.   0.00113    201000. #Fitted_point
   0.00480      20000   849.4      0.   0.00057    201000. #Fitted_point
   0.00423      50000   814.4      0.   0.00018    201000. #Fitted_point
  0.0035       116244   701        0.0  0.00000    203000  #Fitted_point data
  0.0032       149140   642        0.0  0.00000    199000  #Fitted_point data
  0.0032      10000000  642        0.0  0.00000    199000  #Fitted_point data
#
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