#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 # # 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= raw #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 = 65 ksi #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 #StrAmpl 2Nf StsAmpl So PlasStrAmpl IniMod NeuberStressAmpl 0.0100 75 439 0 0.0077 174800 876 0.00997 152 453 0 0.00764 174800 888 0.00515 345 397 0 0.00225 174800 598 0.00508 465 373 0 0.00248 174800 575 0.00506 551 406 0 0.00233 174800 599 0.00502 721 414 0 0.00267 174800 602 0.00489 960 418 0 0.00224 174800 598 0.00391 1253 425 0 0.00115 174800 539 0.00346 1627 364 0 0.00116 174800 469 0.00477 2104 389 0 0.00151 174800 570 0.00354 3895 376 0 0.00112 174800 482 0.00296 5144 358 0 0.00068 174800 431 0.00355 6345 386 0 0.00130 174800 490 0.00290 6975 359 0 0.00051 174800 426 0.00292 8061 407 0 0.00073 174800 455 0.00210 13461 309 0 0.00021 174800 336 0.00194 34274 328 0 0.00021 174800 334 0.00238 68786 350 0 0 174800 382 0.00191 76687 316 0 0 174800 325 0.00206 124321 323 0 0 174800 341 0.00215 167168 376 0 0 174800 376 0.00177 324823 303 0 0 174800 306 0.00164 413639 287 0 0 174800 287 0.00187 674696 302 0 0 174800 315 0.00186 794267 294 0 0 174800 309 0.00155 1710655 251 0 0 174800 261 0.00143 2370250 241 0 0 174800 246 0.00112 2927835 198 0 0 174800 197 0.00135 3618420 226 0 0 174800 232 0.00092 19865200 167 0 0 174800 164 #runout assumed 0.00127 19519550 218 0 0 174800 220 #runout assumed # #