# All of the data below was derived, but not copied, from the NASA Tech. # Note D-1574.The derivations and additions have been made by the members # of the FD&E committee of the SAE. Thus: # # Copyright (C) 1999 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 # #Fn= 34 # AISI 4340 ALLOY, HOT ROLLED AND ANNEALED, # Hour Glass Test Section 0.25in. diam. min. # SMITH, HIRCHBERG, MANSON, NASA TN D-1574, 1963 # Rc=22-24measured = BHN 243 # #FileType= strain_life #DataType= raw #TIMEcol= 0 #NAME= SAE4340_steel #Name= HotRolled+Annealed #UNITS= KSI #Stress_units= ksi #Strain_units= strain #Su= 119.90 #Sy= 92.00 #E= 27978. #%RA= 43.4 #BHN= 243. #NO. FAT. PTS.= 11 #Tot Strain 2Nf Stress Mean Plastic Strain Initial # Amp Amp Stress Amp Elastic Mod. 0.121900 14. 145.91 0. 0.116700 27978. 0.081800 28. 135.47 0. 0.076900 27978. 0.041500 86. 115.89 0. 0.037400 27978. 0.021300 330. 95.87 0. 0.017800 27978. 0.015100 1270. 85.43 0. 0.012100 27978. 0.011000 2100. 79.48 0. 0.008200 27978. 0.006500 5560. 71.50 0. 0.004000 27978. 0.004000 28000. 61.93 0. 0.001800 27978. 0.002800 102400. 57.00 0. 0.000700 27978. 0.002300 332000. 54.53 0. 0.000400 27978. 0.002100 1048000. 51.92 0. 0.000200 27978. # #