# #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 !! # B55XK steel from Hot Rolled 0.250 inch plate. Bethlehem Steel # probably qualifies as HSLA-55 HSLA-380(metric) # Ref.: G.A.Miller and H.S.Reemsnyder, "Strain-Cycle Fatigue of Sheet and # Plate Steels I: Test Method Development and Data Presentation," # SAE Paper 830175, Detroit MI, Feb28-Mar.4, 1983. For more information # on this steel contact one of the authors at http://www.hsreemsnyder.com # Original test data digitized from graphs and may contain errors. # #FileType= strain_life #DataType= fitted #TIMEcol= 0 #NAME= B55XFsteel #NAME= HSLA-55 #NAME= HSLA-380 (metric) #Stress_units= ksi #Strain_units= strain #Sy= 57.8 0.2pc offset X 6.89 = 398mpa #Su= 70.8 = 488mpa #eu= 0 #strain at Su not reported #E= 29500. #FractureStrain= 0 #FractureStress= 0. #monotonic_K= 0 #monotonic_n= 0 #BHN= 0. #%RA= 0 % #saedigcurve_v2.2.f starts. # #NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n' #StrAmpl 2Nf StsAmpl So PlasStrAmpl IniMod NeuberStressAmpl 1.58298 1 108.5 0. 1.57930 29500. #Fitted_point 0.01125 2000 62.0 0. 0.00915 29500. #Fitted_point 0.00688 5000 58.0 0. 0.00492 29500. #Fitted_point 0.00494 10000 55.1 0. 0.00307 29500. #Fitted_point 0.00370 20000 52.4 0. 0.00192 29500. #Fitted_point 0.00269 50000 49.0 0. 0.00103 29500. #Fitted_point 0.00222 100000 46.5 0. 0.00064 29500. #Fitted_point 0.00190 200000 44.2 0. 0.00040 29500. #Fitted_point 0.00162 500000 41.3 0. 0.00022 29500. #Fitted_point 0.00146 1000000 39.2 0. 0.00013 29500. #Fitted_point 0.00135 2000000 37.3 0. 0.00008 29500. #Fitted_point 0.00122 5000000 34.8 0. 0.00004 29500. #Fitted_point #Original test data ends near 2Nf=5M revs. Thus extrapolation: 0.00115 10000000 33.1 0. 0.00003 29500. #Fitted_point 0.00108 20000000 31.4 0. 0.00002 29500. #Fitted_point #