SAE Standard Fatigue Data File format

#SAE Standard Fatigue Data File format #
Pick one: #FDE_plot #FDE_fit # #
#
# SAE8822 simulated Carburized Q+T Core   100%Martensite  HRc=39
# File contains the Short life from Iter108 plus the long-live POL data from It 112
# Carburized Core (Atmosphere)    # Chemical composition is "high side"
# Material cyclically softens substantially.  See curves.
# MacSteel Ht. 2M45025 # ElecFurnace, VacuumDegas, LadleRefined, 
# RotaryCast_177mmBillet HotRolled to 34mm bar.
# Chem.: 0.22wt%C ,86Mn .013P .025S .17Si .24Cu .43Ni .54Cr
# .39Mo .004V .028Al .01Sn
# Process:High Side Composition Quenched and Tempered Simulated 
# Test: UoWaterloo, M.El-Zeghayar and T.Topper   Apr2008

#FileType= strain_life
#DataType= raw
#Name= SAE8822
#Name= AisiIt_108
#Stress_units= MPa
#Strain_units= strain
#Sy= 1135.0
#Su= 1215.0
#E= 194000
#eu= 0.035 engr. strain at Su
#monotonic_K= 1430.0
#monotonic_n= 0.037
#FractureStrain= 0.903
#FractureStress= 2690.
#%RA= 59.4 %
#%Elongation= 55% over 0.3inch
#MaterialForm= bar
#FailureDef= 50% load drop
#Hardness, Rockwell C= 39
#Bhn= 362  #converted from HRc=39

#StrAmp  2Nf StsAmp  So CalcPlasStr InitialModulus
0.00994     1998 856 0.0 0.00552 0000 #None
0.00994     2000 868 0.0 0.00546 0000 #None
0.00990     2000 867 0.0 0.00544 0000 #None
0.00698     5600 823 0.0 0.00273 0000 #None
0.00696     6000 819 0.0 0.00274 0000 #None
0.00696     6400 801 0.0 0.00284 0000 #None
0.00499    20000 758 0.0 0.00108 0000 #None
0.00505    20000 776 0.0 0.00105 0000 #None
0.00502    30000 718 0.0 0.00132 0000 #None
0.00397    79600 752 0.0 0.00010 0000 #None
0.00397   104904 728 0.0 0.00022 0000 #None
0.00398   124000 717 0.0 0.00028 0000 #None
0.00351   137706 681 0.0 0.00000 0000 #None
# Long life points have been removed from Const.Ampl file iter 108
#
#Periodic Overload test data from iter 112 is below:
0.00311    431156   603.1  0   0.  194000 #Periodic OL 100
0.00295    559746   572.9  0   0.  194000 #Periodic OL 300
0.00280    961170   542.8  0   0.  194000 #Periodic OL 350
0.00264   1651892   512.6  0   0.  194000 #Periodic OL 500
0.00247  10000000   478.8  0   0.  194000 #runout #Periodic OL 1500
0.00247  10000000   478.8  0   0.  194000 #runout #Periodic OL 1500
0.00247  10000000   478.8  0   0.  194000 #runout #Periodic OL 1500
0.00260   7495934   503.6  0   0.  194000 #Periodic OL 1500
0.00263   8808820   509.6  0   0.  194000 #Periodic OL 1500
0.00311    693093   603.1  0   0.  194000 #Periodic OL  250
0.00308   1362805   597.   0   0.  194000 #Periodic OL  500
0.00274   4612661   530.7  0   0.  194000 #Periodic OL 1500
#
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