SAE Standard Fatigue Data File format

#SAE Standard Fatigue Data File format #
Pick one: #FDE_plot #FDE_fit # #
#
#FileType= strain_life
#DataType= fitted
#Name= SAE4140
#Name= AisiIt_30
#Stress_units= MPa
#Strain_units= strain
#Sy= 928.9
#Su= 1042.9
#E= 207000
#FractureStress= 1519.
#FractureStrain= 1.0
#%RA= 61.3
#monotonic_K= 1303.3
#monotonic_n= 0.059
#MaterialForm= bar
#FailureDef= 50% load drop
#BHN= 325
#Hardness, Rockwell C= 31
#Basic Oxygen= False
#Electric Furnace= True
#Vacuum Degas= False
#Ladle Refined= True
#Ingot Cast= False
#Continuous Cast= True
#Martensite, %= 100
#Carbon, %= 0.42
#Manganese, %= 0.92
#Phosphorus, %= 0.01
#Sulfur, %= 0.021
#Silicon, %= 0.26
#Copper, %= 0.16
#Nickel, %= 0.07
#Chromium, %= 0.98
#Molybdenum, %= 0.18
#Vanadium, %= 0.00
#Columbium/Niobium, %= 0.00
#Aluminum, %= 0.040
#Boron, %= 0.0002
#Tin, %= 0.010
#Nitrogen, ppm= 10
# SAE4140    AisiIt_30  BHN=  325 Fn=    0
#          Monotonic Props.       Cyclic Props.
#ELAS. MOD.= 30023. KSI,  207. GPA     K'        = 218.4 KSI,  1506.MPA
#YIELD,0.2%=   135. KSI,  929. MPA     N'        = 0.1297
#ULT. STRG.=   151. KSI, 1043. MPA     F. STRG COEF=  213.4 KSI, 1471.MPA
#K       =      0.0 KSI,      0. MPA   F.STRG EXP, b=-0.0829
#N            = 0.0000                 FAT DUCT COEF=   0.8357
#RED. IN AREA = 61.3                   F.DUCT EXP, c=-0.6394
#T. FRAC. STG.=   0.0 KSI, 1519. MPA   Exp Cyc Yld  =   98. Ksi, 673.MPA
#T. FRAC. STR.= 0.000                  Fit Cyc Yld  =   97. Ksi, 670.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!! 1st pt and Fatigue limit points fitted manually.  FAC jun09
#Stress_Units= MPa
# Total Strain   2Nf  Stress  Mean   Plastic Strain   Initial
#    Amp               Amp   Stress      Amp        Elastic Mod.
   1.0              1  1519.       0.   0.9936     207000. #Fitted_point manually(tens. test)
   0.01996        500   868.0      0.   0.01577    207000. #Fitted_point
   0.01410       1000   821.2      0.   0.01013    207000. #Fitted_point
   0.01026       2000   776.8      0.   0.00651    207000. #Fitted_point
   0.00711       5000   721.9      0.   0.00363    207000. #Fitted_point
   0.00563      10000   682.8      0.   0.00233    207000. #Fitted_point
   0.00461      20000   645.8      0.   0.00149    207000. #Fitted_point
   0.00373      50000   599.8      0.   0.00083    207000. #Fitted_point
   0.00327     100000   566.9      0.   0.00053    207000. #Fitted_point
   0.00292     200000   535.7      0.   0.00034    207000. #Fitted_point
   0.00258     500000   496.8      0.   0.00018    207000. #Fitted_point
   0.00238    1000000   469.1      0.   0.00012    207000. #Fitted_point
   0.00215    5000000   440      0.0 0.00000 207000 #Fitted_point manually
   0.00215   10000000   440      0.0 0.00000 207000 #Fitted_point manually
#
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