SAE Standard Fatigue Data File format

#SAE Standard Fatigue Data File format #
Pick one: #FDE_plot #FDE_fit # #
#
# Fitted Curve !
# SAE5160H  Quenched + Tempered,   Rc=47
# Material cyclicly softens from Sy=1600 to Cylic Sy=1067mpa
# ElecFurnace, ConCast 152x152mm, HotRolled to 26mm.
# Specimens machined from 1.023inch round bars, then heat treated, polished.
# 100%Martensite, Typical use= Springs
# Inclusions: TypeA= 1.0T 0.2H, TypeB=0.3T,0H TypeC=none TypeD=0.8T 0.2H
# Test: UoWaterloo, A.Rteil, T.Topper Oct2005
# saedigcurve_v2.2.f starts.
#FileType= strain_life
#DataType= fitted
#Name= SAE5160H
#Name= AisiIt_84
#Stress_units= MPa
#Strain_units= strain
#Sy= 1604.2
#Su= 1761.2
#E= 209000
#monotonic_K= 2216.2
#monotonic_n= 0.052
#FractureStrain= .359
#FractureStress= 1844.
#%RA= 30.2
#MaterialForm= bar
#FailureDef= 50% load drop
#Hardness, Rockwell C= 47
#StrAmp  2Nf StsAmp  So CalcPlasStr InitialModulus
#Basic Oxygen= False
#Electric Furnace= True
#Vacuum Degas= False
#Ladle Refined= False
#Ingot Cast= False
#Continuous Cast= True
#Martensite, %= 100
#Carbon, %= 0.59
#Manganese, %= 0.83
#Phosphorus, %= 0.015
#Sulfur, %= 0.013
#Silicon, %= 0.28
#Copper, %= 0.10
#Nickel, %= 0.05
#Chromium, %= 0.79
#Molybdenum, %= 0.02
#Vanadium, %= 0.04
#Columbium/Niobium, %= 0.00
#Aluminum, %= 0.000
#Lead, %= 0.001
#Titanium, %= 0.002
#Calcium, %= 0.00
#Cobalt, %= 0.006
#Zirconium, %= 0.000
#Boron, %= 0.0002
#Tin, %= 0.006
# SAE5160H   AisiIt_84  BHN= **** Fn=    0
#          Monotonic Props.       Cyclic Props.
#ELAS. MOD.= 30313. KSI,  209. GPA     K'        = 216.5 KSI,  1493.MPA
#YIELD,0.2%=   233. KSI, 1604. MPA     N'        = 0.0576
#ULT. STRG.=   255. KSI, 1761. MPA     F. STRG COEF=  226.1 KSI, 1559.MPA
#K       =      0.0 KSI,      0. MPA   F.STRG EXP, b=-0.0455
#N            = 0.0000                 FAT DUCT COEF=   2.1208
#RED. IN AREA = 30.2                   F.DUCT EXP, c=-0.7888
#T. FRAC. STG.= 267.4 KSI, 1844. MPA   Exp Cyc Yld  =  151. Ksi,1043.MPA
#T. FRAC. STR.= 0.359                  Fit Cyc Yld  =  154. Ksi,1063.MPA
#No. fatigue data points=   18
#
# NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n'
# NOTE!! Adjusted fatigue limit region manually.  FAC Aug2009
#Stress_Units= MPa
# Total Strain   2Nf  Stress  Mean   Plastic Strain   Initial
#    Amp               Amp   Stress      Amp        Elastic Mod.
#    .359 is monotonic
   2.12827          1  1961.4      0.   2.11888    209000. #Fitted_point
   0.01056       2000  1153.2      0.   0.00504    209000. #Fitted_point
   0.00763       5000  1082.3      0.   0.00245    209000. #Fitted_point
   0.00639      10000  1033.3      0.   0.00145    209000. #Fitted_point
   0.00561      20000   989.2      0.   0.00088    209000. #Fitted_point
   0.00498      50000   938.8      0.   0.00049    209000. #Fitted_point
   0.00466     100000   906.1      0.   0.00032    209000. #Fitted_point
   0.00442     200000   877.2      0.   0.00022    209000. #Fitted_point
   0.00417     500000   842.8      0.   0.00014    209000. #Fitted_point
   0.00402    1000000   818.6      0.   0.00010    209000. #Fitted_point
    .00399    2000000   800        0     .0001     209000. #Fitted_point manually
    .00399   10000000   800        0     .0001     209000. #Fitted_point manually
#
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