#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 # # SAE 980X HSLA-550 VAN80 machined from 5/16inch plate channels. # Some specimens were initially overstrained 10 cycles +-1.0% strain # (as tabulated below) # 0.145C wt% 1.25Mn .01P .011S .38Si .06Cu .033Ni .04Cr .056Al .008Mo .12V # Ref.: P.Watson and T.H.Topper, "An Evaluation of the Fatigue Performance # of Automotive Steels," SAE Paper 710597, Montreal Que., Jun.7-11 1971 # Data digitized from graphs and may contain errors. # #FileType= strain_life #DataType= raw #TIMEcol= 0 #NAME= SAE980K #NAME= VAN80 #NAME= HSLA-550 #NAME= Steel #Stress_units= mpa #Strain_units= strain #Sy= 579. 0.2pc offset = 84 ksi #Su= 686. #eu= 0.109 #engr. strain at Su #E= 198000. mpa =28700 ksi #FractureStrain= 1.15 #FractureStress= 1220. mpa #monotonic_K= 0 not reported #monotonic_n= 0 not reported #BHN= 225. #%RA= 68. % #StrAmpl 2Nf StsAmpl So PlasStrAmpl IniMod NeuberStressAmpl 0.010 618 626 0 0.00675 198000 1129 0.00480 4717 607 0 0.00173 198000 760 0.00255 32557 517 0 0.00000 198000 511 0.00200 90966 450 0 0.00000 198000 422 0.00175 900998 367 0 0.00000 198000 356 0.00166 1529555 381 0 0.00000 198000 354 0.00159 13585800 317 0 0.00000 198000 316 #runout #Samples below initially overstraind +-1.0% for 10 cycles: 0.00510 2478 617 0 0.00199 198000 789 0.00250 61980 403 0 0.00047 198000 446 0.00200 186120 350 0 0.00023 198000 372 0.00170 289266 319 0 0.00009 198000 328 0.00150 9893515 286 0 0.00005 198000 291 #runout # #