SAE Standard Fatigue Data File format

#SAE Standard Fatigue Data File format #
Pick one: #FDE_plot #FDE_fit # #
#
# Fitted Curve. 
# SAE4140 Specimens Quenched,Temp.Rc=41, 100%Martensite,
# ElecFurn. Ingot Cast HotRollBarStock=57mm
# TypeD=1.0_Inclusion Rating
# UoWaterloo tests.
# saedigcurve_v2.2.f starts.
#FileType= strain_life
#DataType= fitted
#Name= SAE4140
#Name= AisiIt_67
#Stress_units= MPa
#Strain_units= strain
#Sy= 1314.0
#Su= 1445.8
#E= 205000
#monotonic_K= 1782.2
#monotonic_n= 0.049
#FractureStrain= .70
#FractureStress= 1755.
#%RA=52.1
#MaterialForm= bar
#FailureDef= 50% load drop
#Hardness, Rockwell C= 41
#BHN= 381
#StrAmp  2Nf StsAmp  So CalcPlasStr InitialModulus
#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, %= 0.000
#Titanium, %= 0.003
#Calcium, %= 0.00
#Cobalt, %= 0.000
#Zirconium, %= 0.000
#Boron, %= 0.0004
#Tin, %= 0.009
#Nitrogen, ppm= 103
# SAE4140    AisiIt_67  BHN=  381 Fn=    0
#          Monotonic Props.       Cyclic Props.
#ELAS. MOD.= 29733. KSI,  205. GPA     K'        = 168.9 KSI,  1165.MPA
#YIELD,0.2%=   191. KSI, 1314. MPA     N'        = 0.0454
#ULT. STRG.=   210. KSI, 1446. MPA     F. STRG COEF=  173.0 KSI, 1193.MPA
#K       =      0.0 KSI,      0. MPA   F.STRG EXP, b=-0.0340
#N            = 0.0000                 FAT DUCT COEF=   1.6947
#RED. IN AREA =  0.0                   F.DUCT EXP, c=-0.7486
#T. FRAC. STG.= 254.5 KSI, 1755. MPA   Exp Cyc Yld  =  127. Ksi, 878.MPA
#T. FRAC. STR.= 0.700                  Fit Cyc Yld  =  127. Ksi, 873.MPA
#No. fatigue data points=   21
#
# NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n'
# NOTE!! Manually fit near Nf=1  FAC June09
#Stress_Units= MPa
# Total Strain   2Nf  Stress  Mean   Plastic Strain   Initial
#    Amp               Amp   Stress      Amp        Elastic Mod.
    .70             1  1755.       0.    .69       205000. #Fitted_point manually
   0.01022       2000   912.9      0.   0.00577    205000. #Fitted_point
   0.00724       5000   887.0      0.   0.00291    205000. #Fitted_point
   0.00597      10000   867.8      0.   0.00174    205000. #Fitted_point
   0.00518      20000   849.1      0.   0.00104    205000. #Fitted_point
   0.00454      50000   824.7      0.   0.00052    205000. #Fitted_point
   0.00424     100000   806.5      0.   0.00031    205000. #Fitted_point
   0.00403     200000   788.4      0.   0.00018    205000. #Fitted_point
   0.00382     500000   764.7      0.   0.00009    205000. #Fitted_point
   0.00369    1000000   746.9      0.   0.00005    205000. #Fitted_point
   0.00359    2000000   729.4      0.   0.00003    205000. #Fitted_point
   0.00346    5000000   706.8      0.   0.00001    205000. #Fitted_point
   0.00337   10000000   690.2      0.   0.00001    205000. #Fitted_point
   0.00329   20000000   674.0      0.   0.00000    205000. #Fitted_point
   0.00319   50000000   653.2      0.   0.00000    205000. #Fitted_point
   0.00311  100000000   637.9      0.   0.00000    205000. #Fitted_point
   0.00304  200000000   623.1      0.   0.00000    205000. #Fitted_point
   0.00295  500000000   603.9      0.   0.00000    205000. #Fitted_point
   0.00288 1000000000   589.9      0.   0.00000    205000. #Fitted_point
#
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