Material + Cycles File

#Material + Cycles File #

1. Your Material (Digital-Fitted Curves):


#
# Fitted Curve.
#saedigcurve_v2.2.f starts.
# AISI SAE 1090 Q+T to BHN 309 AISI Bar Group  It=8  Rc=33
# ElecFurn. ConCast 152x152mm, HotRolled to 25.4mmBar, As-Forged_2100F
# Quenched in 1650F Oil, 100%Martensite
# Type A inclu. rate of 1/2.  Type B,C,D not observed
# 0.88%C .66Mn .001P .019S .18Si .08Cu .04Ni .07Cr .01Mo
# .037Va .001Ca .003Bo  Al.lt.j.001 .001Ti .0028O .003Cb
# Test: UofWaterloo A.Varvani-Farahani A.Dabayeh T.Topper May 1998
#FileType= strain_life
#DataType= fitted
#Name= SAE1090_Q+T
#Name= AisiIt_08
#Stress_units= MPa
#Strain_units= strain
#Sy= 677.6
#Su= 1147.0
#E= 213000
#monotonic_K= 1913.0
#monotonic_n= 0.168
#LowerYield= 634.4
#UpperYield= 647.6
#FractureStrain= 0.20
#FractureStress= 1151.
#%RA= 21.7
#MaterialForm= bar
#FailureDef= 50% load drop
#BHN= 309
#Hardness, Rockwell C= 33
#StrAmp  2Nf StsAmp  So CalcPlasStr InitialModulus
#Basic Oxygen= False
#Electric Furnace= True
#Vacuum Degas= False
#Ladle Refined= False
#Ingot Cast= False
#Continuous Cast= True
#Martensite, %= 100
#Carbon, %= 0.88
#Manganese, %= 0.66
#Phosphorus, %= 0.001
#Sulfur, %= 0.019
#Silicon, %= 0.18
#Copper, %= 0.08
#Nickel, %= 0.04
#Chromium, %= 0.07
#Molybdenum, %= 0.01
#Vanadium, %= 0.04
#Columbium/Niobium, %= 0.00
#Aluminum, %= 0.001
#Titanium, %= 0.001
#Calcium, %= 0.00
#Boron, %= 0.003
#Oxygen, ppm= 28
# SAE1090_Q+ AisiIt_08  BHN=  309 Fn=    0
#          Monotonic Props.       Cyclic Props.
#ELAS. MOD.= 30893. KSI,  213. GPA     K'        = 299.5 KSI,  2065.MPA
#YIELD,0.2%=    98. KSI,  678. MPA     N'        = 0.1903
#ULT. STRG.=   166. KSI, 1147. MPA     F. STRG COEF=  272.6 KSI, 1879.MPA
#K       =      0.0 KSI,      0. MPA   F.STRG EXP, b=-0.1162
#N            = 0.0000                 FAT DUCT COEF=   0.6096
#RED. IN AREA = 21.7                   F.DUCT EXP, c=-0.6103
#T. FRAC. STG.= 166.9 KSI, 1151. MPA   Exp Cyc Yld  =   92. Ksi, 633.MPA
#T. FRAC. STR.= 0.200                  Fit Cyc Yld  =   90. Ksi, 619.MPA
#No. fatigue data points=   21
#
# NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n'
# NOTE!! Short life and Fatigue limit fitted manually   FAC Jul09
#Stress_Units= MPa
# Total Strain   2Nf  Stress  Mean   Plastic Strain   Initial
#    Amp               Amp   Stress      Amp        Elastic Mod.
    .20             1  1151        0.    .19999    213000. #Fitted_point manually
   0.01295       1000   837.5      0.   0.00902    213000. #Fitted_point
   0.00954       2000   769.7      0.   0.00593    213000. #Fitted_point
   0.00665       5000   688.9      0.   0.00342    213000. #Fitted_point
   0.00523      10000   633.9      0.   0.00226    213000. #Fitted_point
   0.00424      20000   583.7      0.   0.00150    213000. #Fitted_point
   0.00334      50000   524.1      0.   0.00088    213000. #Fitted_point
   0.00286     100000   483.6      0.   0.00059    213000. #Fitted_point
   0.00249     200000   446.6      0.   0.00040    213000. #Fitted_point
   0.00212     500000   402.3      0.   0.00024    213000. #Fitted_point
   0.00212   10000000   402.3      0.   0.00024    213000. #Fitted_point manually
#

2. History Magnification or Multiplication factor

3. Enter Elastic Kt*Nominal (or Finite Element) Stress History (Rainflow counted cycle sets) Below:

MPa !

Cycle Set #1 : Smax Smin Cycles
Cycle Set #2 : Smax Smin Cycles
Cycle Set #3 : Smax Smin Cycles
Cycle Set #4 : Smax Smin Cycles
Cycle Set #5 : Smax Smin Cycles
Cycle Set #6 : Smax Smin Cycles

1. Your Material (Digital-Fitted Curves):

2. History Magnification or Multiplication factor

3. Enter Elastic Kt*Nominal (or Finite Element) Stress History (Rainflow counted cycle sets) Below:

4. (Page will be submitted to UoWaterloo Website)