# #Copyright (C) 2012 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: Fitted Data !! # Merged File SAE980 HSLA550 of Refs: # Ref.1 : G.A.Miller and H.S.Reemsnyder, "Strain-Cycle Fatigue of Sheet and # Plate Steels I: Test Method Development and Data Presentation," # SAE Paper 830175, Detroit MI, Feb28-Mar.4, 1983. # # Ref.2 : P.Watson and T.H.Topper, "An Evaluation of the Fatigue Performance # of Automotive Steels," SAE Paper 710597, Montreal Que., Jun.7-11 1971 # Data digitized by F.D.+E. from graphs and may contain errors. # #FileType= strain_life #DataType= fitted #TIMEcol= 0 #NAME= SAE980 #NAME= HSLA550 #NAME= Steel #Stress_units= mpa #Strain_units= strain #Sy= 571. mpa average of (562,579) #Su= 648. mpa average of (610,686) #eu= 0.109 #engr. strain at Su Ref.2 #E= 200650 mpa average of (203300,198000) #FractureStrain= 1.15 Ref. 2 #FractureStress= 1220. mpa Ref. 2 #BHN= 225. Ref. 2 #%RA= 68. % Ref. 2 #saedigcurve_v2.2.f starts. #NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n' #StrAmpl 2Nf StsAmpl So PlasStrAmpl IniMod 1.15 1 1220. 0. 1.144 200650. #Fitted_point monotonic 0.01185 1000 493.1 0. 0.00939 200650. #Fitted_point 0.00866 2000 475.3 0. 0.00629 200650. #Fitted_point 0.00596 5000 452.6 0. 0.00370 200650. #Fitted_point 0.00464 10000 436.1 0. 0.00247 200650. #Fitted_point 0.00373 20000 419.9 0. 0.00164 200650. #Fitted_point 0.00293 50000 399.1 0. 0.00094 200650. #Fitted_point 0.00252 100000 383.4 0. 0.00061 200650. #Fitted_point 0.00222 200000 367.8 0. 0.00039 200650. #Fitted_point 0.00193 500000 346.9 0. 0.00021 200650. #Fitted_point 0.00177 1000000 331.0 0. 0.00012 200650. #Fitted_point 0.00164 2000000 315.0 0. 0.00007 200650. #Fitted_point 0.00164 10000000 315.0 0. 0.00007 200650. #Fitted_point manually #