#Copyright (C) 2011 Fatigue Design and Evaluation Comm. #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 # # SAE 1018 Normalized, Transverse Specimens, tested in Oil # Specimens machined from 3.5 inch normalized forged billet. # 0.18C wt% .006P .028S .50Mn .04Si .036Cu .036Cr .008Sn .025Ni .01Mo .03Co # Hardnes Rb= 48.5, Vickes(30kg)= 101 # Sources: The data points were derived from graphs in the paper: # D.G.Havard and T.H.Topper, "Low-Cycle Biaxial Fatigue of AISI 1018 Steel," # Ontario Hydro Res. Quaterly, 2nd Q. 1969, pp.1-12. # Note: Data may contain errors from digitization process. # #FileType= strain_life #DataType= raw #TIMEcol= 0 #NAME= SAE1018steel #NAME= Normalized #NAME= test_in_oil #Name= Transverse #Stress_units= mpa #Strain_units= strain #Su= 436. mpa #Sy= 234. mpa #E= 206700. #Modulus not reported. Assumed=30000ksi #FractureStrain= 0.772 #FractureStress= 944. #BHN= 82 HV-30kg= 101, HRb=48.5 #%RA= 53.8 #Elongation= 63.7 (3/8 inch G.L.) # #StrAmpl 2Nf StsAmpl So PlasStrAmpl IniMod NeuberAmpl_mpa 0.80068 1 985 0 0.79591 206700 12766 0.01492 799 384 0 0.01306 206700 1088 0.01092 1089 370 0 0.00912 206700 914 0.00762 3232 317 0 0.00609 206700 707 0.00506 9202 282 0 0.00370 206700 543 0.00348 14560 276 0 0.00215 206700 445 0.00286 38574 221 0 0.00179 206700 361 0.00204 74271 168 0 0.00123 206700 267 0.00235 83574 171 0 0.00152 206700 288 0.00172 303073 177 0 0.00087 206700 251 # #