SAE Standard Fatigue Data File format

#SAE Standard Fatigue Data File format #
Pick one: #FDE_plot #FDE_fit # #
#
# SAE 9254 Modified: extra Vanadium, Q+T HRc=54 AISI Iter. 34
# Material cyclically softens substantially.
# Ispat Inland Stl. 9254 Modified Obtained Through Chrysler/Meritor
# Basic Oxygen, Concast, HotRolled 25mm bar, Spec. machined
# then heat treated: held 45min 1650F in nitrogen, Quenched in
# 150F Oil, Tempered 45min at 770F, then water quenched, Rc=51-55
# Final polish before testing.
# Chem.: 0.52wt%C .45Mn .011P .011S 1.49Si .01Ni .72Cr
# .09Mo .19V 0Nb .024Al 100ppm_N
# Inclusions: TypeABC=not obsv., TypeD=1.5
# Test: UoWaterloo, M.Khalil and T.Topper May2000

#FileType= strain_life
#DataType= raw
#Name= SAE9254V
#Name= AisiIt_34
#Stress_units= MPa
#Strain_units= strain
#Sy= 1870.0
#Su= 2050.0
#eu= 0.03  engr. strain at Su
#E= 220000 (estimated from long life) Original report=206000 too low. FAC
#monotonic_K= 2413.0
#monotonic_n= 0.042
#FractureStrain= 0.436
#FractureStress= 2495.
#%RA= 35.1 %
#%Elongation= 17 %  read from graph
#MaterialForm= bar
#FailureDef= 50% load drop
#BHN= 536
#Hardness, Rockwell C= 54

#StrAmp  2Nf StsAmp  So CalcPlasStr InitialModulus
0.0099 2878 1525 0.0 0.00244 196000 #None
0.0099 2926 1436 0.0 0.00290 197000 #None
0.0099 3566 1514 0.0 0.00252 202000 #None
0.0081 4608 1417 0.0 0.00118 208000 #None
0.0080 7174 1400 0.0 0.00120 209000 #None
0.0080 7188 1406 0.0 0.00121 199000 #None
0.0060 12970 1287 0.0 0.00000 208000 #None
0.0060 15512 1287 0.0 0.00000 207000 #None
0.0060 18598 1309 0.0 0.00000 207000 #None
0.0049 37694 1103 0.0 0.00000 203000 #None
0.0049 38818 1099 0.0 0.00000 203000 #None
0.0049 43196 1102 0.0 0.00000 203000 #None
0.00374   122250 838 0.0 0.00000 201000 #None
0.00349   184484 791 0.0 0.00000 205000 #None
0.00359   196180 826 0.0 0.00000 209000 #None
0.00398   234064 882 0.0 0.00000 201000 #None
0.00379   252216 838 0.0 0.00000 201000 #None
0.00394   307530 909 0.0 0.00000 210000 #None
0.00393   335388 908 0.0 0.00000 210000 #None
0.00369   335478 843 0.0 0.00000 207000 #None
0.00345   473600 859 0.0 0.00000 200000 #None
0.00379   774880 860 0.0 0.00000 206000 #None
0.00350  4100030 793 0.0 0.00000 206000 #None
0.00363  4714006 821 0.0 0.00000 207000 #None
0.00348 10000000 771 0.0 0.00000 201000 #Runout
0.00359 10000000 826 0.0 0.00000 209000 #Runout
0.00349 10000000 791 0.0 0.00000 205000 #Runout
#Basic Oxygen= True
#Continuous Cast= True
#Martensite, %= 100

#Carbon, %= 0.52
#Manganese, %= 0.45
#Phosphorus, %= 0.011
#Sulfur, %= 0.011
#Silicon, %= 1.49
#Copper, %= 0.01
#Nickel, %= 0.01
#Chromium, %= 0.72
#Molybdenum, %= 0.09
#Vanadium, %= 0.19
#Columbium/Niobium, %= 0.00
#Aluminum, %= 0.024
#Nitrogen, ppm= 100
#
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