SAE Standard Fatigue Data File format

#SAE Standard Fatigue Data File format #
Pick one: #FDE_plot #FDE_fit # #

# SAE8620 Q+T Simul. Carburized Core, POL tests, Axial, HRc=41
# NOTE!: Periodic Overload Tests
# Gerdau Ht M27967 ElecFurnace VacDegas ConCast, Hot Roll to 15.2mm bar.
# Samples austenitized at 1700F 3.5hr. lowered to 1600F 40min, Quench 140F oil
# tempered at 350F to aim for HRC=42,  Bainite, %= 50 #Martensite, %= 50
# Chem.: 0.22wt%C .83Mn .006P .023S .25Si .20C .45Ni .50Cr
# .18Mo .003V .002Nb .027Al .0003Pb .002Ti .0007Ca .0002B .007Sn
# Inclusion Rating TypeA=2.0T 1.0H TypeB=0.5T 0.0H TypeC=0 TypeD=1.0T 0.5H
# ASTM grain size: Fine grain 5-8
# Specimens were pre-cycled for 1000 cyc. at the overload amplitudes.
# Tested by J.Lindsey U.Toledo 2010

#FileType= strain_life
#DataType= raw
#Name= SAE8620-Q+T
#Name= AISIit.145
#Name= Simul.Core
#Units= MPa
#Sy= 989.5
#Su= 1310.8
#E=  205000 average of initial loading.   Tensile test E=214000
#eu= 0.045 engr. strain at Su
#monotonic_K= 2275.7
#monotonic_n= 0.138
#MaterialForm= bar
#%RA= 52 %
#%Elongation= 26.9 % over 0.3 inch
#TrueFractureStress= 1711
#TrueFractureStrain= 0.736
#Hardness, Rockwell C= 41
#BHN= 381

#StrAmpl 2Nf StsAmpl So PlsStrAmpl Initial Emod
#0.020020 312 1202 -12.6 0.014380 206000 #IGL
#0.020000 322 1205 -13.8 0.014400 208000 #IGL
#0.019980 608 1167 -12.5 0.014500 174000 #IGL ?modulus?
#0.010000 1898 1080 -19.8 0.004940 203000 #IGL
#0.010000 2146 1036 -22.4 0.005140 204000 #IGL
#0.010000 3060 1005 -10.9 0.005290 185000 #IGL
#0.004990 22708 841 27.4 0.001050 205000 #IGL
#0.005000 23292 852 4.3 0.001010 207000 #IGL
#0.004950 24902 842 4.2 0.001010 204000 #IGL
#0.003500 141316 675 2.4 0.000340 205000 #IGL
#0.003480 185206 689 2.4 0.000240 209000 #IGL
#0.003480 351080 672 2.3 0.000330 197000 #IGL
#0.003000 440318 606 1.8 0.000160 208000 #IGL
#0.003000 495690 565 1.7 0.000350 206000 #IGL
#0.003000 680440 602 1.8 0.000180 205000 #OGIT
#0.002750 10000000 543 1.5 0.000210 207000 #IGL
#0.002750 10000000 549 1.5 0.000180 205000 #Runout
#0.002750 10000000 546 1.5 0.000190 205000 #Runout
#Tests above are from Const. Ampl.  Iter.121

#Tests below are Periodic Overload tests
.00283 72646 547 304 .00026 205800
.00235 80898 464 370 .00017 207500
.00224 185612 441 420 .00017 202300
.00176 208516 350 477 .00012 202600
.00174 190280 347 415 .00011 201400
.00150 320030 301 527 .00009 204900
.00128 909500 258 592 .00007 198500
.00125 1230320 251 586 .00007 208700
.00100 2435936 213 649 .0 199400
.00100 2858766 196 639 .00008 198000

#Carbon, %= 0.2200
#Manganese, %= 0.8300
#Phosphorus, %= 0.0060
#Sulfur, %= 0.0230
#Silicon, %= 0.2500
#Copper, %= 0.2000
#Nickel, %= 0.4500
#Chromium, %= 0.5000
#Molybdenum, %= 0.1800
#Vanadium, %= 0.0030
#Columbium/Niobium, %= 0.0020
#Aluminum, %= 0.0270
#Lead, %= 0.0003
#Titanium, %= 0.0020
#Calcium, %= 0.0007
#Zirconium, %= 0.0010
#Boron, %= 0.0002
#Tin, %= 0.0070
#
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