# saedigcurve_v2.2.f starts. #Copyright (C) 2021 Fatigue Design + Evaluation Committee of the SAE. #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 MERCHANTA- #BILITY 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 # AA5083-O rolled Alum. !! FITTED CURVE DATA File !! # Spec. machined from 1 inch thick plate with axis parallel to # rolling, then polished. # Ref.: J.D.Burk, F.V.Lawrence, jr., "The Effect of Residual Stresses # Ref.: on Weld Fatigue Life", U.of Illinois, Urbana, Jan. 1978 # Ref.: Dept. Metallurgical Engr., Fracture Control Report FCP No. 29 # Note that last test ~2million 2Nf. Fitted curve goes farther !! #FileType= strain_life #DataType= fitted #TIMEcol= 0 #Name= AA5083-O #Name= BaseMetal #StressUnits= mpa #StrainUnits= strain #Sy= 131 mpa 19 ksi #Su= 294 42.6 #Emod= 71000 10300 #%RA= 30 % #FractureStress= 414 60 ksi #FractureStrain= 0.36 #n= 0.129 #K= 300 mpa 43.4 ksi #Cyclic_Sy= 290 mpa 42 ksi # # 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. 0.36 1 414 0. 0.354 71000. # Tensile test # 0.03385 50 391.4 0. 0.02833 71000. #Fitted_point 0.02275 100 371.2 0. 0.01752 71000. #Fitted_point 0.01577 200 351.9 0. 0.01081 71000. #Fitted_point 0.01028 500 327.7 0. 0.00566 71000. #Fitted_point 0.00778 1000 309.9 0. 0.00342 71000. #Fitted_point 0.00614 2000 292.4 0. 0.00202 71000. #Fitted_point 0.00473 5000 268.9 0. 0.00094 71000. #Fitted_point 0.00402 10000 250.4 0. 0.00050 71000. #Fitted_point 0.00350 20000 231.3 0. 0.00024 71000. #Fitted_point 0.00298 50000 205.8 0. 0.00008 71000. #Fitted_point 0.00268 100000 187.6 0. 0.00004 71000. #Fitted_point 0.00243 200000 171.1 0. 0.00002 71000. #Fitted_point 0.00214 500000 151.8 0. 0.00001 71000. #Fitted_point 0.00196 1000000 139.0 0. 0.00000 71000. #Fitted_point 0.00180 2000000 127.4 0. 0.00000 71000. #Fitted_point 0.00160 5000000 113.8 0. 0.00000 71000. #Fitted_point 0.00147 10000000 104.6 0. 0.00000 71000. #Fitted_point 0.00135 20000000 96.2 0. 0.00000 71000. #Fitted_point 0.00121 50000000 86.1 0. 0.00000 71000. #Fitted_point 0.00112 100000000 79.3 0. 0.00000 71000. #Fitted_point 0.00103 200000000 72.9 0. 0.00000 71000. #Fitted_point 0.00092 500000000 65.4 0. 0.00000 71000. #Fitted_point 0.00085 1000000000 60.2 0. 0.00000 71000. #Fitted_point # #