SAE Standard Fatigue Data File format

#SAE Standard Fatigue Data File format #
Pick one: #FDE_plot #FDE_fit # #
#
# Fitted Curve !
# SAE9310 Thru Carburized Simulated Case  Rc= 57 5%Bainite, 95%Martensite
# Material cyclically hardens to elastic conditions.
# ElecFurnace, ConCast(152x152) HotRolled 29.4mm bar,
# Specimens machined then carburized, then polished
# Inclusions: TypeA=1.5T 1.0H, TypeB,C=0, TypeD= 0.5T 0H
# Test: UoWaterloo, A.Rteil and T.Topper Oct2005
# saedigcurve_v2.2.f starts.
#FileType= strain_life
#DataType= fitted
#Name= SAE9310
#Name= Iteration 58
#Name= ThruCarburized
#Units= MPa
#Sy= 1024.2
#Su= 1635.7
#E= 190200
#monotonic_K= 6292.9
#monotonic_n= 0.292
#FractureStrain= 0.020
#FractureStress= 1685.
#%RA= 2.9
#MaterialForm= bar
#FailureDef= 50% load drop
#Hardness, Rockwell C= 57
#Bhn= 595
#Basic Oxygen= False
#Electric Furnace= True
#Vacuum Degas= False
#Ladle Refined= False
#Ingot Cast= False
#Continuous Cast= True
#Bainite, %= 5
#Martensite, %= 95
#Carbon, %= 0.11
#Manganese, %= 0.62
#Phosphorus, %= 0.013
#Sulfur, %= 0.018
#Silicon, %= 0.24
#Copper, %= 0.20
#Nickel, %= 3
#Chromium, %= 1.18
#Molybdenum, %= 0.08
#Vanadium, %= 0.01
#Columbium/Niobium, %= 0.00
#Aluminum, %= 0.034
#Lead, %= 0.001
#Titanium, %= 0.003
#Calcium, %= 0.00
#Cobalt, %= 0.000
#Zirconium, %= 0.002
#Boron, %= 0.0003
#Tin, %= 0.010
#Oxygen, ppm= 0
#Nitrogen, ppm= 104
# SAE9310    Iteration  BHN=  595 Fn=    0
#          Monotonic Props.       Cyclic Props.
#ELAS. MOD.= 27586. KSI,  190. GPA     K'        =   0.0 KSI,     0.MPA
#YIELD,0.2%=   149. KSI, 1024. MPA     N'        = 0.0000
#ULT. STRG.=   237. KSI, 1636. MPA     F. STRG COEF=  515.8 KSI, 3556.MPA
#K       =      0.0 KSI,      0. MPA   F.STRG EXP, b=-0.1171
#N            = 0.0000                 FAT DUCT COEF=   0.0000
#RED. IN AREA =  2.9                   F.DUCT EXP, c= 0.0000
#T. FRAC. STG.= 244.4 KSI, 1685. MPA   Exp Cyc Yld  =    0. Ksi,   0.MPA
#T. FRAC. STR.= 0.200                  Fit Cyc Yld  =    0. Ksi,   0.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!! No plastic points. Use elastic line to fit data.  FAC Aug2009
#Stress_Units= MPa
# Total Strain   2Nf  Stress  Mean   Plastic Strain   Initial
#    Amp               Amp   Stress      Amp        Elastic Mod.
   0.02             1    3800.     0.      .0      190200. #Fitted_point manually
   0.01005        200    1912.     0.      .0      190200. #Fitted_point manually
    .00352    2000000     670.     0.      .0      190200. #Fitted_point manually
    .00352   10000000     670.     0.      .0      190200. #Fitted_point manually
#
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