#
# #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 !! # Nodular Iron BS420/12 SAE D4512 ASTM-65-45-12 machined surfaces # From axle housings of 7 different suppliers. # Paper also shows surface cut specimens (results not included here). # Ref.: M.S.Starkey and P.E.Irving, "A comparison of the fatigue strength # of machined and as-cast surfaces of SG iron", Int.J.Fat., July 1982 pp.129-136 # Data digitized from graphs and probably contains errors. # #FileType= strain_life #DataType= fitted #TIMEcol= 0 #NAME= SAE-D4512 #NAME= BS420-12 #NAME= NodularFe #Name= Iron #Stress_units= mpa #Strain_units= strain #Sy= 300. 0.2pc offset = 44 ksi #Su= 445 #eu= 0 #strain at Su not reported #E= 174800. mpa =25370 ksi #FractureStrain= 0 not reported #FractureStress= 0. not reported #monotonic_K= 0 not reported #monotonic_n= 0 not reported #BHN= 0. #%RA= 0. % not reported #saedigcurve_v2.2.f starts. #NOTE!! The Following Points are FITTED DATA:#NOTE!! Fitted Stress computed using Experm. K' and n' #StrAmpl 2Nf StsAmpl So PlasStrAmpl IniMod NeuberStressAmpl 0.10588 1 560.8 0. 0.10267 174800. #Fitted_point 0.01352 50 462.5 0. 0.01088 174800. #Fitted_point 0.00992 100 447.2 0. 0.00736 174800. #Fitted_point 0.00747 200 432.6 0. 0.00499 174800. #Fitted_point 0.00538 500 414.2 0. 0.00301 174800. #Fitted_point 0.00435 1000 400.9 0. 0.00206 174800. #Fitted_point 0.00363 2000 388.2 0. 0.00141 174800. #Fitted_point 0.00299 5000 372.1 0. 0.00086 174800. #Fitted_point 0.00266 10000 360.4 0. 0.00060 174800. #Fitted_point 0.00240 20000 348.9 0. 0.00041 174800. #Fitted_point 0.00216 50000 334.0 0. 0.00024 174800. #Fitted_point 0.00201 100000 322.6 0. 0.00016 174800. #Fitted_point 0.00189 200000 311.1 0. 0.00011 174800. #Fitted_point 0.00175 500000 295.8 0. 0.00006 174800. #Fitted_point 0.00166 720000 284.1 0. 0.00004 174800. #Fitted_point manually 0.00158 1000000 272.6 0. 0.00002 174800. #Fitted_point manually 0.00149 1600000 257.7 0. 0.00001 174800. #Fitted_point manually 0.00142 2000000 246.8 0. 0.00001 174800. #Fitted_point manually 0.00136 2500000 236.3 0. 0.00000 174800. #Fitted_point manually 0.00115 4100000 201 0. 0.00000 174800. #Fitted_point manually 0.0011 20000000 192.3 0. 0.00000 174800. #Fitted_point manually #
#TOTDAM(SWT)= 0.0000000E+00 allowed Repeats= inf nrev= 1