#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 # # Merged File SAE980 HSLA550 of Refs: # Ref.1 : 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. # # Ref.2 : 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 by F.D.+E. from graphs and may contain errors. # #FileType= strain_life #DataType= raw #TIMEcol= 0 #NAME= SAE980 #NAME= HSLA550 #NAME= Steel #Stress_units= mpa #Strain_units= strain #Sy= 571. mpa average of (562,579) #Su= 648. mpa average of (610,686) #eu= 0.109 #engr. strain at Su Ref.2 #E= 200650 mpa average of (203300,198000) #FractureStrain= 1.15 Ref. 2 #FractureStress= 1220. mpa Ref. 2 #BHN= 225. Ref. 2 #%RA= 68. % Ref. 2 #StrAmpl 2Nf StsAmpl So PlasStrAmpl IniMod NeuberStressAmpl # B80RK steel from 0.052inch sheet, Bethlehem Steel 0.00997 1356 447.7 0 0.00777 203300 952.8 0.01031 1775 462.7 0 0.00803 203300 984.8 0.01019 1898 453.8 0 0.00796 203300 969.6 0.01011 2257 453.7 0 0.00787 203300 965.5 0.00764 3511 472.6 0 0.00531 203300 856.6 0.00755 3940 438.0 0 0.00540 203300 820.1 0.00758 4822 444.9 0 0.00539 203300 827.9 0.00504 8099 418.3 0 0.00298 203300 654.6 0.00493 9265 415.3 0 0.00289 203300 645.1 0.00496 9816 415.3 0 0.00292 203300 647.4 0.00501 13224 419.3 0 0.00295 203300 653.8 0.00503 14419 419.3 0 0.00297 203300 654.9 0.00503 15130 409.4 0 0.00302 203300 647.1 0.00502 16183 422.2 0 0.00295 203300 656.6 0.00201 218789 350.9 0 0.00028 203300 378.6 0.00201 367696 343.0 0 0.00032 203300 374.1 0.00200 378459 328.2 0 0.00039 203300 365.3 0.00198 393285 333.1 0 0.00034 203300 366.0 0.0015 3047140 305.2 0 0.00000 203300 305.1 #runout 0.001 4516900 203.3 0 0.00000 203300 203.3 #runout # SAE 980X HSLA-550 VAN80 machined from 5/16inch plate channels. # Some specimens were initially overstrained 10 cycles +-1.0% strain # (as tabulated below) #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 # #