#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 # # MicroAlloySteel Inland_Duraspring HRc=55.2 BHN # 0.49C wt% 1.24Mn .013P .007S 1.29Si .54Cr .036Al .023Cb .14V # Austenitized at 900C 30min, Quenched in mineral oil, Temp. 342 for 45min # Ref.: B.Yan, "Fatigue Behavior of a Microalloyed Steel Under Uniaxial # Loading", SAE Paper No. 930967, SAE Congress, Detroit, March1-5, 1993. # Also contains data from Shrikant P.Baht stress control tests. # Two points near 10**7 revs assumed to be runouts. # Data digitized from graph and may contain slight errors. # #FileType= strain_life #DataType= raw #TIMEcol= 0 #NAME= MicroAlloy #NAME= SpringSteel #NAME= Inland #Stress_units= mpa #Strain_units= strain #Sy= 1871. 0.2pc offset #Su= 2108. #eu= 0 #strain at Su not reported #E= 199000. # not reported. Estimated from Cyclic Stress-Strain curve #FractureStrain= 0.49 #computed from %RA #FractureStress= 2388. Not reported, estimated #monotonic_K= 0 not reported #monotonic_n= 0 not reported #BHN= 560. HRc=55.2 #%RA= 38.8 % #StrAmpl 2Nf StsAmpl So PlasStrAmpl IniMod NeuberStressAmpl 0.01509 157 1803 0 0.00603 199000 2327 0.01010 832 1574 0 0.00219 199000 1779 0.01009 1735 1604 0 0.00204 199000 1795 0.00806 2151 1447 0 0.00079 199000 1524 0.00606 3475 1253 0 0. 199000 1229 0.00507 8953 1056 0 0. 199000 1032 0.00404 24699 908 0 0. 199000 855 0.00405 66412 837 0 0. 199000 821 0.00409 101937 741 0 0. 199000 776 0.00303 407227 635 0 0. 199000 619 #BYan confirmed that next two points are runouts: 0.00201 10477850 400 0 0. 199000 400 #runout 0.00201 10614567 400 0 0. 199000 400 #runout #Shrikant P Baht stress-control data below: 0.00657 12101 1307 0 0 199000 1307 0.00553 22147 1100 0 0 199000 1100 0.00483 84318 962 0 0 199000 962 0.00448 104246 891 0 0 199000 891 0.00380 152681 755 0 0 199000 755 0.00414 175981 824 0 0 199000 824 0.00364 275238 724 0 0 199000 724 0.00380 360378 756 0 0 199000 756 0.00364 9821060 724 0 0 199000 724 0.00348 10022580 692 0 0 199000 692 #runout 0.00339 10233600 674 0 0 199000 674 #runout # #