SAE Standard Fatigue Data File format

#SAE Standard Fatigue Data File format #
Pick one: #FDE_plot #FDE_fit # #
#
# Fitted Curve !
# SAE8620 Thru Carburized Rc=59
# BasicOxygen, LadleRefined, ConCast(381x508mm), HotRolled to 82.6mm bar
# Specimens machined, thru carburized, polished.
# Inclusions: TypeD= 1 Thin, TypeA,B,C=none
# Test: UoWaterloo, M.Khalil, T.Topper Jan.2001
# saedigcurve_v2.2.f starts.
#FileType= strain_life
#DataType= fitted
#Name= SAE8620
#Name= AisiIt_38
#Name= ThruCarburized
#Stress_units= MPa
#Strain_units= strain
#Sy= 920.0
#Su= 1202.0
#E= 202000
#monotonic_K= 2335.0
#monotonic_n= 0.122
#FractureStrain= 0.011
#FractureStress= 1150.
#%RA= 1.
#MaterialForm= bar
#FailureDef= 50% load drop
#BHN= 583
#Hardness, Rockwell C= 59
#StrAmp  2Nf StsAmp  So CalcPlasStr InitialModulus
#Basic Oxygen= True
#Electric Furnace= False
#Vacuum Degas= False
#Ladle Refined= True
#Ingot Cast= False
#Continuous Cast= True
#Martensite, %= 100
#Carbon, %= 0.23  (prior to carburize)
#Manganese, %= 0.82
#Phosphorus, %= 0.011
#Sulfur, %= 0.027
#Silicon, %= 0.25
#Copper, %= 0.02
#Nickel, %= 0.48
#Chromium, %= 0.5
#Molybdenum, %= 0.18
#Vanadium, %= 0.01
#Columbium/Niobium, %= 0.00
#Lead, %= 0.001
#Titanium, %= 0.003
#Tin, %= 0.003
#Nitrogen, ppm= 40
# SAE8620    AisiIt_38  BHN=  583 Fn=    0
#          Monotonic Props.       Cyclic Props.
#ELAS. MOD.= 29298. KSI,  202. GPA     K'        =6105.3 KSI, 42095.MPA
#YIELD,0.2%=   133. KSI,  920. MPA     N'        = 0.5461
#ULT. STRG.=   174. KSI, 1202. MPA     F. STRG COEF=  170.0 KSI, 1172.MPA
#K       =      0.0 KSI,      0. MPA   F.STRG EXP, b=-0.0603
#N            = 0.0000                 FAT DUCT COEF=   0.0014
#RED. IN AREA =  1.0                   F.DUCT EXP, c=-0.1104
#T. FRAC. STG.= 166.8 KSI, 1150. MPA   Exp Cyc Yld  =  205. Ksi,1414.MPA
#T. FRAC. STR.= 0.011                  Fit Cyc Yld  =  150. Ksi,1032.MPA
#No. fatigue data points=   19
#
# NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n'
#Stress_Units= MPa
# Total Strain   2Nf  Stress  Mean   Plastic Strain   Initial
#    Amp               Amp   Stress      Amp        Elastic Mod.
   0.00722          1  1039.6      0.   0.00207    202000. #Fitted_point
   0.00688          2  1016.2      0.   0.00185    202000. #Fitted_point
   0.00645          5   984.9      0.   0.00158    202000. #Fitted_point
   0.00615         10   960.9      0.   0.00139    202000. #Fitted_point
   0.00586         20   936.8      0.   0.00122    202000. #Fitted_point
   0.00550         50   904.6      0.   0.00103    202000. #Fitted_point
   0.00525        100   879.9      0.   0.00089    202000. #Fitted_point
   0.00501        200   855.2      0.   0.00077    202000. #Fitted_point
   0.00470        500   822.2      0.   0.00063    202000. #Fitted_point
   0.00449       1000   797.1      0.   0.00054    202000. #Fitted_point
   0.00428       2000   772.0      0.   0.00046    202000. #Fitted_point
   0.00403       5000   738.7      0.   0.00037    202000. #Fitted_point
   0.00384      10000   713.7      0.   0.00031    202000. #Fitted_point
   0.00367      20000   688.8      0.   0.00026    202000. #Fitted_point
   0.00345      50000   656.2      0.   0.00020    202000. #Fitted_point
   0.00330     100000   632.0      0.   0.00017    202000. #Fitted_point
   0.00315     200000   608.1      0.   0.00014    202000. #Fitted_point
   0.00296     500000   577.2      0.   0.00011    202000. #Fitted_point
   0.00283    1000000   554.4      0.   0.00009    202000. #Fitted_point
   0.00270    2000000   532.2      0.   0.00007    202000. #Fitted_point
   0.00255    5000000   503.8      0.   0.00005    202000. #Fitted_point
   0.00243   10000000   483.1      0.   0.00004    202000. #Fitted_point
   0.00233   20000000   463.0      0.   0.00003    202000. #Fitted_point
   0.00219   50000000   437.6      0.   0.00003    202000. #Fitted_point
   0.00210  100000000   419.2      0.   0.00002    202000. #Fitted_point
   0.00200  200000000   401.4      0.   0.00002    202000. #Fitted_point
   0.00189  500000000   379.1      0.   0.00001    202000. #Fitted_point
   0.00181 1000000000   362.9      0.   0.00001    202000. #Fitted_point
#
#