# saedigcurve_v2.2.f starts. #Copyright (C) 2019 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 ! # RQC-100 SAE15B21H Bethlehem Steel a Boron Steel. # Chem. .19Cwt% 0.79Mn .005P .021S .24Si .0028_B # 3/8 inch thick plate, Roller quenched from 1650F tempered # at 900F or higher to 100 ksi. # Ref.: L.Tucker, S.Bussa, "The SAE Cumulative Fatigue Damage Test # Program," SAE paper 750038, SAE Congress Detroit MI, Feb. 1975. #FileType= strain_life #DataType= fitted #TIMEcol= 0 #Name= RQC-100 #Name= BoronSteel #Name= SAE15B21H #Stress_units= mpa #Strain_units= strain #Tensile Properties below are for Transverse #Sy= 807 mpa avg. of 3 #Su= 851 #E= 208000 mpa reported # #BHN= 257 based on Su #%RA= 44 % #TrueFractureStress= 1100 #TrueFractureStrain= 0.58 #monotonicK= 1150 mpa #monotonicn= 0.068 # #NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n' #strAmpl 2Nf stsAmpl So PlsStrAmp Emod 0.58 1 1100 0. 0.575 208000. #Fitted_point 0.02183 200 799.9 0. 0.01799 208000. #Fitted_point 0.01325 500 728.4 0. 0.00975 208000. #Fitted_point 0.00943 1040 679.1 0. 0.00616 208000. #Fitted_point 0.00698 2000 634.0 0. 0.00393 208000. #Fitted_point 0.00500 4300 580.6 0. 0.00221 208000. #Fitted_point 0.00408 9200 545.1 0. 0.00146 208000. #Fitted_point 0.00346 20000 513.6 0. 0.00099 208000. #Fitted_point 0.00291 50000 477.8 0. 0.00062 208000. #Fitted_point 0.00263 89000 454.4 0. 0.00044 208000. #Fitted_point 0.00241 170000 433.6 0. 0.00033 208000. #Fitted_point 0.00219 420000 408.9 0. 0.00022 208000. #Fitted_point 0.00205 800000 391.8 0. 0.00017 208000. #Fitted_point 0.00193 1400000 375.6 0. 0.00013 208000. #Fitted_point 0.00180 5000000 355.1 0. 0.00009 208000. #Fitted_point 0.00180 20000000 355.1 0. 0.00009 208000. #Fitted_point #