SAE Standard Fatigue Data File format

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

# SAE1538MV As Forged from Crankshaft, AISI It.133,  HRc=29
# NOTE! : Periodic overload tests.
# Constant Ampl. tests, Axial specimens cut from Cranks.
# From 5 Crankshafts From 5 Heats of steel.
# Gerdau Heats 3M73212, 4M73828, 4M73833, 4M73835, 4M73836 
# ElecFurn. VacDegas LadleRefined,Rotary Cast, 244mm Billet
# HotRolled to 120mm bar, Forged into Crankshafts.
# Chem.: 0.38wt%C 1.36Mn .009P .054S .54Si .16Cu .10Ni .15Cr .02Mo
# .086V .002Nb .003Al .001Ti .0006Ca .0002B .009Sn 147ppm_N
# 75%pearlite, 25%Ferrite
# Inclusion Ratings: TypeA=3.0T 1.5H B=0.5T 0.0H C=0 D=1.0T 1.0H
# Note! POL test had 1000 pre-cycle at Overload level before POL test
# Tested by Z.Lopez UoToledo, 2012

#FileType= strain_life
#DataType= raw
#Name= SAE1538MV
#Name= Forged
#Name= AisiIt.134
#Units= MPa
#Sy= 627.9
#Su= 943.2
#E= 193500
#eu= 0.095 engr. strain at Su
#monotonic_K= 1445.5
#monotonic_n= 0.145
#MaterialForm= bar
#%RA= 36.4 %
#%Elongation= 26.7
#TrueFractureStress= 1070
#TrueFractureStrain= 0.452
#Hardness, Brinell= 276.5
#BHN= 277

#StrAmpl 2Nf StsAmpl So PlsStrAmp initialEmod
0.019950 464 862 -7.1 0.015490 188000 #IGL
0.020040 498 857 -4.4 0.015600 190000 #IGL
0.010010 1472 752 -6.5 0.006120 209000 #IGL
0.009950 2124 721 -8.5 0.006220 186000 #IGL
0.005010 9892 644 -10.4 0.001670 185000 #IGL
0.005000 10732 648 1.1 0.001660 195000 #IGL
0.004990 14500 611 -8.4 0.001840 187000 #IGL
0.003500 28556 563 -37.3 0.000590 190000 #IGL
0.003490 34240 568 -5.0 0.000560 199000 #IGL
0.003500 44334 563 -23.8 0.000590 192000 #IGL
#0.002500 192344 459 1.0 0.000130 192600 #IGL avrg Emod
#0.002500 255404 458 1.3 0.000130 192600 #IGL
#0.002500 447542 478 -97.6 0.000030 198000 #IGL
#0.002000 1078788 390 1.6 0.000000 192600 #IGL
#0.002000 1736708 389 0.1 0.000000 192600 #IGL
#0.002000 2142424 390 0.0 0.000000 192600 #IGL
#0.001750 10000000 336 -0.3 0.000000 192600 #Runout
#0.001750 10000000 338 0.2 0.000000 192600 #Runout
#Data above is from Const Ampl. Iter.133
#A "#" in 1st col. makes the line a comment.

#Data below are POL  tests
0.00175 86372 336 261 0.00001 192600
0.00175 167872 336 261 0.00001 192600
0.00125 69758 240 356 0 192600
0.00125 112654 240 356 0 192600
0.0009 453432 173 423 0 192600
0.0009 776802 173 423 0 192600
0.0007 887660 135 462 0 192600
0.0007 3498408 135 462 0 192600
0.0006 5836516 115 482 0 192600
0.0006 6656298 115 482 0 192600

#Carbon, %= 0.38
#Manganese, %= 1.36
#Phosphorus, %= 0.009
#Sulfur, %= 0.054
#Silicon, %= 0.54
#Copper, %= 0.16
#Nickel, %= 0.10
#Chromium, %= 0.15
#Molybdenum, %= 0.02
#Vanadium, %= 0.086
#Columbium/Niobium, %= 0.0020
#Aluminum, %= 0.0030
#Titanium, %= 0.0010
#Calcium, %= 0.0006
#Boron, %= 0.0002
#Tin, %= 0.009
#Nitrogen, ppm= 147
#
#