# #Copyright (C) 2011 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 !! # NiCrMoV ASTM-A470-Class 7 HeatTreated Steel, Shaft Material. # 0.29C wt% .31Mn .007P .01S .06Si 3.54Ni 1.69Cr .45Mo .12V .099Cu # Austenitize 843C 39hr,Water Q., Temper 602C 46hr, StsRelief 593C 23hr # Ref.: "Torsional Fatigue Life of Power Plant Equipment Rotating Shafts," # N.E.Dowling, DOE Rep. DOE/RA/29353-1 DE83009313, Washington D.C., Sep. 1982 # #FileType= strain_life #DataType= fitted #TIMEcol= 0 #NAME= NiCrMoV #NAME= HeatTreated #NAME= Steel #NAME= ASTM-A470-C7 #Stress_units= mpa #Strain_units= strain #Sy= 741. 0.2pc offset #Su= 858. #eu= 0 #strain at Su not reported #E= 200000. #FractureStrain= 1.24 #computed from %RA #FractureStress= 1678. (not Bridgeman corrected) #BHN= 269 # HRc= 24.6 #%RA= 71 % #saedigcurve_v2.2.f starts. # # NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n' #Stress_Units= MPa # Total Strain 2Nf Stress Mean Plastic Strain Initial # Amp Amp Stress Amp Elastic Mod. 1.24 1 1678 0 1.23 200000. #Fitted_point monotonic 0.01844 500 660.9 0. 0.01514 200000. #Fitted_point 0.01236 1000 637.8 0. 0.00917 200000. #Fitted_point 0.00863 2000 615.4 0. 0.00555 200000. #Fitted_point 0.00579 5000 587.1 0. 0.00286 200000. #Fitted_point 0.00456 10000 566.4 0. 0.00172 200000. #Fitted_point 0.00377 20000 546.4 0. 0.00104 200000. #Fitted_point 0.00313 50000 520.7 0. 0.00053 200000. #Fitted_point 0.00282 100000 501.9 0. 0.00031 200000. #Fitted_point 0.00260 200000 483.5 0. 0.00019 200000. #Fitted_point 0.00239 500000 460.0 0. 0.00009 200000. #Fitted_point 0.00227 1000000 442.8 0. 0.00005 200000. #Fitted_point 0.00216 2000000 426.3 0. 0.00003 200000. #Fitted_point 0.00204 5000000 405.4 0. 0.00002 200000. #Fitted_point 0.00196 10000000 390.3 0. 0.00001 200000. #Fitted_point #points below are extrapolation 0.00188 20000000 375.9 0. 0.00001 200000. #Fitted_point 0.00179 50000000 357.6 0. 0.00000 200000. #Fitted_point #