SAE Standard Fatigue Data File format

#SAE Standard Fatigue Data File format #
Pick one: #FDE_plot #FDE_fit # #
#
# Fitted Curve
#saedigcurve_v2.2.f starts.
# AISI SAE 1090M (GM) Hot Form-Accelerated Cooled Steel It.10 Rc=28
# Basic Oxygen, LadleRef, HotRolled to 50.8mm bar, As-Forged 2100F, Austempered
# 95% Pearlite, 5%Bainite
# Type A inclusions of 1.5, Type B,C,D not seen.
# Tensile has upper/lower yield type curve.
# 0.88C .58Mn .002P .021S .22Si .28Cu .08Ni .14Cr .02Mo .03Va .002Ca
# .0024B Al <.001 .001Ti .0024O .003Cb  wt%  >
# Test: U.Waterloo A.V-Farahani,T.Topper Sept May 1998
#HRc=28, UpperYield=112.1ksi
#
#FileType= strain_life
#DataType= fitted
#Name= SAE1090
#Name= AisiIt_10
#Stress_units= MPa
#Strain_units= strain
#Sy= 759.5
#Su= 1124.0
#E= 214000
#monotonic_K= 1575.5
#monotonic_n= 0.108
#LowerYield= 759.5
#UpperYield= 772.7
#FractureStrain= 0.50
#FractureStress= 840
#%RA= 37.6
#MaterialForm= bar
#FailureDef= 50% load drop
#BHN= 272
#Hardness, Rockwell C= 28
#StrAmp  2Nf StsAmp  So CalcPlasStr InitialModulus
#Basic Oxygen= True
#Electric Furnace= False
#Vacuum Degas= False
#Ladle Refined= True
#Ingot Cast= False
#Continuous Cast= True
#Bainite, %= 5
#Pearlite, %= 95
#Carbon, %= 0.88
#Manganese, %= 0.58
#Phosphorus, %= 0.002
#Sulfur, %= 0.021
#Silicon, %= 0.22
#Copper, %= 0.28
#Nickel, %= 0.08
#Chromium, %= 0.14
#Molybdenum, %= 0.02
#Vanadium, %= 0.03
#Columbium/Niobium, %= 0.00
#Aluminum, %= 0.001
#Titanium, %= 0.001
#Calcium, %= 0.00
#Boron, %= 0.0024
#Oxygen, ppm= 24
# SAE1090    AisiIt_10  BHN=  272 Fn=    0
#          Monotonic Props.       Cyclic Props.
#ELAS. MOD.= 31038. KSI,  214. GPA     K'        = 273.9 KSI,  1888.MPA
#YIELD,0.2%=   110. KSI,  760. MPA     N'        = 0.1836
#ULT. STRG.=   163. KSI, 1124. MPA     F. STRG COEF=  218.4 KSI, 1506.MPA
#K       =      0.0 KSI,      0. MPA   F.STRG EXP, b=-0.0907
#N            = 0.0000                 FAT DUCT COEF=   0.2912
#RED. IN AREA = 37.6                   F.DUCT EXP, c=-0.4940
#T. FRAC. STG.= 121.8 KSI,  840. MPA   Exp Cyc Yld  =   88. Ksi, 603.MPA
#T. FRAC. STR.= 0.500                  Fit Cyc Yld  =   87. Ksi, 603.MPA
#No. fatigue data points=   20
#
# NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n'
# NOTE!! Short life and Fatigue limit points fitted manually  FAC Jul09
#Stress_Units= MPa
# Total Strain   2Nf  Stress  Mean   Plastic Strain   Initial
#    Amp               Amp   Stress      Amp        Elastic Mod.
    .50             1   840.       0.    .4961     214000. #Fitted_point manually
   0.01035       2000   759.6      0.   0.00680    214000. #Fitted_point
   0.00759       5000   697.4      0.   0.00433    214000. #Fitted_point
   0.00613      10000   653.9      0.   0.00308    214000. #Fitted_point
   0.00505      20000   613.1      0.   0.00219    214000. #Fitted_point
   0.00403      50000   563.2      0.   0.00140    214000. #Fitted_point
   0.00346     100000   528.4      0.   0.00100    214000. #Fitted_point
   0.00303     200000   495.8      0.   0.00071    214000. #Fitted_point
   0.00259     500000   455.9      0.   0.00046    214000. #Fitted_point
   0.00259   10000000   455.9      0.   0.00046    214000. #Fitted_point manually
#
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