SAE Standard Fatigue Data File format

#SAE Standard Fatigue Data File format #
Pick one: #FDE_plot #FDE_fit # #
#
# Fitted Curve !
# SAE86B20  Thru Carburized Simulated Case  HRc=59 100%Martensite
# Material neither hardens nor softens cyclically.
# ElecFurnace, ConCast(184.2mm billet), HotRolled 53.2mm bar, Spec. machined
# then thru carburized in vacuum furnace 1700F
# Inclusions: TypeA=2thin TypeB,C=0  TypeD=1.5thin
# Test: UoToledo, N.Cyril and A.Fatemi, Sept2006
# saedigcurve_v2.2.f starts.
#FileType= strain_life
#DataType= fitted
#Name= SAE86B20
#Name= ThruCarburized
#Name= AisiIt_83
#Stress_units= MPa
#Strain_units= strain
#Sy= 1349.6
#Su= 1349.6
#E= 204000
#monotonic_K= 2930.1
#monotonic_n= 0.092
#FractureStrain= 0.0068
#FractureStress= 1359.
#%RA= 0.7
#MaterialForm= bar
#FailureDef= 50% load drop
#BHN= 627
#Hardness, Rockwell C= 59
#Basic Oxygen= False
#Electric Furnace= True
#Vacuum Degas= False
#Ladle Refined= False
#Ingot Cast= False
#Continuous Cast= True
#Martensite, %= 100
#Carbon, %= 0.19
#Manganese, %= 0.9
#Phosphorus, %= 0.018
#Sulfur, %= 0.029
#Silicon, %= 0.24
#Copper, %= 0.24
#Nickel, %= 0.36
#Chromium, %= 0.58
#Molybdenum, %= 0.2
#Aluminum, %= 0.021
#Titanium, %= 0.034
#Calcium, %= 0.00
#Boron, %= 0.002
#Tin, %= 0.009
#Nitrogen, ppm= 65
# SAE86B20   ThruCarbur BHN=  627 Fn=    0
#          Monotonic Props.       Cyclic Props.
#ELAS. MOD.= 29588. KSI,  204. GPA     K'        =****** KSI,125905.MPA
#YIELD,0.2%=   196. KSI, 1350. MPA     N'        = 0.5015
#ULT. STRG.=   196. KSI, 1350. MPA     F. STRG COEF=  323.5 KSI, 2230.MPA
#K       =      0.0 KSI,      0. MPA   F.STRG EXP, b=-0.1063
#N            = 0.0000                 FAT DUCT COEF=   0.0003
#RED. IN AREA =  0.7                   F.DUCT EXP, c=-0.2119
#T. FRAC. STG.= 197.1 KSI, 1359. MPA   Exp Cyc Yld  =  809. Ksi,5577.MPA
#T. FRAC. STR.= 0.007                  Fit Cyc Yld  =  439. Ksi,3026.MPA
#No. fatigue data points=   12
#
# NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n'
# NOTE!! Inserted a fatigue limit manually.   FAC  Aug.2009
#Stress_Units= MPa
# Total Strain   2Nf  Stress  Mean   Plastic Strain   Initial
#    Amp               Amp   Stress      Amp        Elastic Mod.
   0.01125          1  2166.2      0.   0.00064    204000. #Fitted_point
   0.01043          2  2025.5      0.   0.00051    204000. #Fitted_point
   0.00944          5  1850.7      0.   0.00037    204000. #Fitted_point
   0.00876         10  1726.8      0.   0.00029    204000. #Fitted_point
   0.00812         20  1610.0      0.   0.00023    204000. #Fitted_point
   0.00735         50  1466.2      0.   0.00017    204000. #Fitted_point
   0.00682        100  1365.2      0.   0.00013    204000. #Fitted_point
   0.00633        200  1270.5      0.   0.00010    204000. #Fitted_point
   0.00573        500  1154.7      0.   0.00007    204000. #Fitted_point
   0.00532       1000  1073.8      0.   0.00006    204000. #Fitted_point
   0.00494       2000   998.3      0.   0.00004    204000. #Fitted_point
   0.00447       5000   906.3      0.   0.00003    204000. #Fitted_point
   0.00415      10000   842.2      0.   0.00002    204000. #Fitted_point
   0.00386      20000   782.6      0.   0.00002    204000. #Fitted_point
   0.00349      50000   710.0      0.   0.00001    204000. #Fitted_point
   0.00324     100000   659.6      0.   0.00001    204000. #Fitted_point
   0.00301     200000   612.7      0.   0.00001    204000. #Fitted_point
   0.00273     500000   555.8      0.   0.00001    204000. #Fitted_point
   0.00254    1000000   516.2      0.   0.00000    204000. #Fitted_point
   0.00235    2000000   479.5      0.   0.00000    204000. #Fitted_point
   0.00213    5000000   434.9      0.   0.00000    204000. #Fitted_point
   0.00198   10000000   403.9      0.   0.00000    204000. #Fitted_point
   0.00198   11000000   403.9      0.   0.00000    204000. #Fitted_point manually
#
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