# #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 !!! # 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. # Data digitized from graph and may contain slight errors. # #FileType= strain_life #DataType= fitted #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 % #saedigcurve_v2.2.f starts. # #NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n' #Total Strain 2Nf Stress Mean Plastic Strain Initial #Amp Amp Stress Amp Elastic Mod. 0.49 1 2388 0. .478 199000. #Fitted_point monotonic 0.01406 200 1762.5 0. 0.00520 199000. #Fitted_point 0.01084 500 1636.4 0. 0.00261 199000. #Fitted_point 0.00919 1000 1537.2 0. 0.00146 199000. #Fitted_point 0.00797 2000 1433.3 0. 0.00077 199000. #Fitted_point 0.00678 5000 1291.0 0. 0.00029 199000. #Fitted_point 0.00609 10000 1185.0 0. 0.00013 199000. #Fitted_point 0.00552 20000 1085.9 0. 0.00006 199000. #Fitted_point 0.00489 50000 969.0 0. 0.00002 199000. #Fitted_point 0.00449 100000 891.0 0. 0.00001 199000. #Fitted_point 0.00413 200000 820.9 0. 0.00000 199000. #Fitted_point 0.00371 500000 738.3 0. 0.00000 199000. #Fitted_point 0.00343 1000000 682.3 0. 0.00000 199000. #Fitted_point 0.00317 2000000 631.1 0. 0.00000 199000. #Fitted_point 0.00317 10000000 631.1 0. 0.00000 199000. #Fitted_point #