# #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 !! # steel 30CrNiMo8 + 34CrNiMo6V merged file # Files from Boller/Seeger, Santera/Zenner, and Liebrich merged then fitted. #FileType= strain_life #DataType= fitted #Strain_units= strain #Stress_Units= MPa #Name= 30CrNiMo8 #Name= 34CrNiMo6V #Name= mergedFile #Stress_units= mpa #Strain_units= strain #Sy= 787 # avg of 4 reported files. #Su= 970 # average of 4 reported files. #eu= 0.50 #strain at Su assume 1/2 of A5= 16 to 20% #E= 206000 mpa #rough average #FractureStrain= 0.708 #FractureStress= 1168. mpa #FractureStrain= 0.708 #FractureStress= 1168. #BHN= . not reported #%RA= 0. % #The standard Coffin/Manson fit process worked well in this case. #Monotonic Props. Cyclic Props. #ELAS. MOD.= 29878. KSI, 206. GPA K' = 125.0 KSI, 862.MPA #YIELD,0.2%= 114. KSI, 787. MPA N' = 0.0609 #ULT. STRG.= 141. KSI, 970. MPA F. STRG COEF= 123.3 KSI, 850.MPA #K = 0.0 KSI, 0. MPA F.STRG EXP, b=-0.0398 #N = 0.0000 FAT DUCT COEF= 0.7949 #RED. IN AREA = 0.0 F.DUCT EXP, c=-0.6534 #T. FRAC. STG.= 169.4 KSI, 1168. MPA Exp Cyc Yld = 86. Ksi, 590.MPA #T. FRAC. STR.= 0.708 Fit Cyc Yld = 84. Ksi, 578.MPA #No. fatigue data points= 49 # #NOTE!! The Following Points are FITTED DATA: #NOTE!! Fitted Stress computed using Experm. K' and n' #TotalStrain 2Nf Stress Mean Plastic Strain #Amp Amp Stress Amp Elastic Mod. 0.79903 1 1081.4 0. 0.79378 206000. #Fitted_point 0.01693 500 706.0 0. 0.01350 206000. #Fitted_point 0.01185 1000 673.3 0. 0.00858 206000. #Fitted_point 0.00859 2000 642.3 0. 0.00547 206000. #Fitted_point 0.00598 5000 604.2 0. 0.00305 206000. #Fitted_point 0.00480 10000 577.8 0. 0.00199 206000. #Fitted_point 0.00401 20000 553.7 0. 0.00133 206000. #Fitted_point 0.00336 50000 525.7 0. 0.00081 206000. #Fitted_point 0.00304 100000 507.5 0. 0.00058 206000. #Fitted_point 0.00281 200000 491.7 0. 0.00043 206000. #Fitted_point 0.00260 500000 473.8 0. 0.00030 206000. #Fitted_point 0.00248 1000000 462.0 0. 0.00023 206000. #Fitted_point 0.00238 2000000 451.2 0. 0.00019 206000. #Fitted_point 0.00227 5000000 438.0 0. 0.00014 206000. #Fitted_point 0.00219 10000000 428.5 0. 0.00011 206000. #Fitted_point 0.00213 20000000 419.2 0. 0.00009 206000. #Fitted_point 0.00205 50000000 407.1 0. 0.00007 206000. #Fitted_point # #