Material + Cycles File

#Material + Cycles File #

1. Your Material (Digital-Fitted Curves):


#
# Fitted Curve !
# AISI/SAE 1090M Accelerated Cooled Steel AISI Bar Group. Iter.09
# BasicOxygen, VacDegas, ConCast, HotRolled? Forged 2100F
# Martensitic/Bainitic structure, TypeA inclusions=0.5
# No Type B,C or D observed. Upper/Lower yield behavior Upper=111.4,Low=109.
# .88C Wt% .58Mn .002P .021S .22Si .28Cu .08Ni .14Cr .02Mo .03Va
# .002Ca .0024B Al-lessthan.001 .001Ti .0024O .003Cb  HRc=29=279BHN
# Test: UoWaterloo, A.Varvani-Farahani, A.Dabayeh, T.Topper, May1998
#saedigcurve_v2.2.f starts.
#FileType= strain_life
#DataType= fitted
#Name= SAE1090M
#Name= Steel
#Name= AisiIt_09
#Fn= 756
#Stress_units= MPa
#Strain_units= strain
#Sy= 751.3
#Su= 1251.3
#E= 212000
#monotonic_K= 2273.3
#monotonic_n= 0.193
#LowerYield= 751.3
#UpperYield= 768.3
#FractureStrain= 0.10
#FractureStress= 1169
#%RA= 13.6
#MaterialForm= bar
#FailureDef= 50% load drop
#BHN= 279
#Hardness, Rockwell C= 29
#Basic Oxygen= True
#Electric Furnace= False
#Vacuum Degas= True
#Ladle Refined= False
#Ingot Cast= False
#Continuous Cast= True
#Martensite, %= 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
# SAE1090M   Steel      BHN=  279 Fn=  756
#          Monotonic Props.       Cyclic Props.
#ELAS. MOD.= 30748. KSI,  212. GPA     K'        = 302.9 KSI,  2089.MPA
#YIELD,0.2%=   109. KSI,  751. MPA     N'        = 0.1917
#ULT. STRG.=   181. KSI, 1251. MPA     F. STRG COEF=  299.4 KSI, 2064.MPA
#K       =      0.0 KSI,      0. MPA   F.STRG EXP, b=-0.1270
#N            = 0.0000                 FAT DUCT COEF=   0.9409
#RED. IN AREA = 13.6                   F.DUCT EXP, c=-0.6627
#T. FRAC. STG.= 169.5 KSI, 1169. MPA   Exp Cyc Yld  =   92. Ksi, 634.MPA
#T. FRAC. STR.= 0.100                  Fit Cyc Yld  =   93. Ksi, 638.MPA
#No. fatigue data points=   19
#
# 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.
    .10             1  1169.       0.    .0945     212000. #Fitted_point manually
   0.00982       2000   778.1      0.   0.00615    212000. #Fitted_point
   0.00663       5000   698.4      0.   0.00333    212000. #Fitted_point
   0.00512      10000   643.1      0.   0.00209    212000. #Fitted_point
   0.00410      20000   591.7      0.   0.00130    212000. #Fitted_point
   0.00319      50000   529.0      0.   0.00069    212000. #Fitted_point
   0.00271     100000   485.2      0.   0.00042    212000. #Fitted_point
   0.00235     200000   444.4      0.   0.00026    212000. #Fitted_point
 0.0022        408300   430        0.0  0.00017    212000. #Fitted_point manually
0.0022       10000000   429        0.0  0.00017    212000. #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)