# #Copyright (C) 2015 F.D.E Committee #This data file is free software - you can redistribute it and/or #modify it under the terms of the GNU General Public License as #published by the Free Software Foundation; either version 2 of the #license, or (at your option) any later version. #This data file is distributed in the hope that it will be useful, #but WITHOUT ANY WARRANTY - without even the implied warranty of #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #GNU General PUblic License for more details. #You should have received a copy of the GNU General PUblic License #along with this program - if not, write to the Free Software #Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA #Try also their web site: http://www.gnu.org/copyleft/gpl.html # # Note!! These are FITTED points, not the raw data! # IF_Steel Interstitial Free Cold Rolled 2mm thick sheet. # Supplier: Dofasco CC007A, 4 ft. wide sheet. # Ref. Tommy Siu-Chung Lam, "Derivation of Crack Growth Rate vs. # Effective Strain Intensity Factor Range and Crack Opening Stress vs. # Maximum and Minimum Stress Data from Effective-Strain Fatigue Life Data," # MSc. Thesis Mech.Engr., U.Waterloo, 1998. # Chem.: 0.0041C wt% .17Mn .067Al .0047N # Note: Stress-strain hysteresis loops at very long life have plasticity # (which is normal for low carbon steels. FAC) # # saedigcurve_v2.2.f starts. #FileType= strain_life #DataType= fitted #TIMEcol= 0 #NAME= IF_steel #NAME= InterstitialFree #NAME= CC007A #Strain_units= strain #Stress_units= mpa #Sy= 92. mpa #Su= 340. mpa #eu= 0.0 # Strain at Ultimate not reported #Total Elongation 0 % not reported #E= 206000. mpa #%RA= 94. % #BHN= 57. not reported #FractureStrain= 2.8 not reported, compute from %RA #FractureStress= 2650. #monotonic_K= 0 not reported #monotonic_n= 0 not reported #No. fatigue data points= 9 # ##NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n' ##Total Strain 2Nf Stress Mean Plastic Strain Initial ## Amp Amp Stress Amp Elastic Mod. 2.8 1 2650. 0. 2.79987 206000. #Fitted_point Monotonic 0.00467 12000 237.3 0. 0.00352 206000. #Fitted_point manually 0.00367 20000 208.1 0. 0.00266 206000. #Fitted_point 0.00269 40000 175.0 0. 0.00184 206000. #Fitted_point 0.00213 80000 153.6 0. 0.00139 206000. #Fitted_point manually 0.00171 180000 134.8 0. 0.00105 206000. #Fitted_point manually 0.00128 500000 113.5 0. 0.00073 206000. #Fitted_point manually 0.00104 1200000 99.7 0. 0.00055 206000. #Fitted_point manually 0.00090 3000000 93.7 0. 0.00045 206000. #Fitted_point manually 0.00090 15000000 93.7 0. 0.00045 206000. #Fitted_point manually #