SAE Standard Fatigue Data File format

#SAE Standard Fatigue Data File format #
Pick one: #FDE_plot #FDE_fit # #
#
# Fitted Curve: Lots of scatter. Fitted curve placed near lower bounds
# SAE41B17M (PS19)_ Aisi_It_73 Carburized case, Rc=61 BHN=  665 
# ElecFurn. LadleRefined, IngotCast HotRolled 32mm Bar
# Inclusions: TypeA 1T 0M, TypeB,C 0, TypeD 1.0T 0.5M,  100% Martensite
# saedigcurve_v2.2.f starts.
#FileType= strain_life
#DataType= fitted
#Name= SAE41B17M_(PS19)
#Name= Aisi_It_73
#Name= CarburizedCase
#Stress_units= MPa
#Strain_units= strain
#Sy= 1275.0
#Su= 1275.0
#E= 206000   #Changed. Was reported as 208000
#monotonic_K= 2180.0
#monotonic_n= 0.087
#TrueFracture_strain= 0.008
#TrueFracture_stress= 1275.
#%RA= 1.
#MaterialForm= bar
#FailureDef= 50% load drop
#BHN= 665
#Hardness, Rockwell C= 61
#Basic Oxygen= False
#Electric Furnace= True
#Vacuum Degas= False
#Ladle Refined= True
#Ingot Cast= True
#Continuous Cast= False
#Martensite, %= 100
#Carbon, %= 0.18
#Manganese, %= 1.13
#Phosphorus, %= 0.017
#Sulfur, %= 0.02
#Silicon, %= 0.26
#Copper, %= 0.18
#Nickel, %= 0.12
#Chromium, %= 0.52
#Molybdenum, %= 0.12
#Vanadium, %= 0.01
#Aluminum, %= 0.036
#Lead, %= 0.000
#Titanium, %= 0.042
#Calcium, %= 0.00
#Cobalt, %= 0.010
#Zirconium, %= 0.000
#Boron, %= 0.0023
#Tin, %= 0.010
#Nitrogen, ppm= 82
# SAE41B17M_ Aisi_It_73 BHN=  665 Fn=    0
#          Monotonic Props.       Cyclic Props.
#ELAS. MOD.= 29878. KSI,  206. GPA     K'        =2850.8 KSI, 19655.MPA
#YIELD,0.2%=   185. KSI, 1275. MPA     N'        = 0.3292
#ULT. STRG.=   185. KSI, 1275. MPA     F. STRG COEF=  360.5 KSI, 2486.MPA
#K       =      0.0 KSI,      0. MPA   F.STRG EXP, b=-0.1360
#N            = 0.0000                 FAT DUCT COEF=   0.0019
#RED. IN AREA =  1.0                   F.DUCT EXP, c=-0.4132
#T. FRAC. STG.=   0.0 KSI,    0. MPA   Exp Cyc Yld  =  369. Ksi,2541.MPA
#T. FRAC. STR.= 0.000                  Fit Cyc Yld  =  259. Ksi,1788.MPA
#No. fatigue data points=   14
#
# 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.
   0.008      1  1275.   0.  0.0018    206000. #Fitted_point (tensile test)
0.0065       132 1200    0   0.00018   206000 #Fitted_point Manually.
0.0050      1010 1034  0.0   0.000101  206000 #Fitted_point Manually.
.0030       5400  621  0.0   0.00000   206000 #Fitted_point Manually.
0.0020    174000  414  0.0   0.00000   206000 #Fitted_point Manually.
0.0020  10000000  414  0.0   0.00000   206000 #Fitted_point Manually.
#
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