#
#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= 100 # AM_350_hard STAINLESS STEEL, # COLD DRAWN, 25-35% REDUCTION, LONGITUDINAL # Diametral Specimen tests. # SMITH et al., NASA TN D-1574, 1963 # BHN 482/512 # #FileType= strain_life #DataType= fitted #TIMEcol= 0 #NAME= AM_350_hard #NAME= AISI_633 #Name= StainlessSteel #Stress_units= ksi #Strain_units= strain #Su= 275.80 #Sy= 269.80 #E= 25976. #%RA= 20.3 #BHN= 496. #NO. FAT. PTS.= 21 # #_AM_350_har AISI_633 BHN= 496 Fn= 100 # Monotonic Props. Cyclic Props. #ELAS. MOD.= 25976. KSI, 179. GPA K' = 526.9 KSI, 3633.MPA #YIELD,0.2%= 270. KSI, 1860. MPA N' = 0.1557 #ULT. STRG.= 276. KSI, 1902. MPA F. STRG COEF= 426.7 KSI, 2942.MPA #K = 0.0 KSI, 0. MPA F.STRG EXP, b=-0.1100 #N = 0.0000 FAT DUCT COEF= 0.2579 #RED. IN AREA = 20.3 F.DUCT EXP, c=-0.7064 #T. FRAC. STG.= 0.0 KSI, 0. MPA Exp Cyc Yld = 200. Ksi,1380.MPA #T. FRAC. STR.= 0.000 Fit Cyc Yld = 220. Ksi,1519.MPA #No. fatigue data points= 21 # # NOTE!! Fitted Stress computed using Experm. K' and n' # NOTE!! Strain-Life-Stress-PlasStr fitted by hand. Mar5-2009 FAC # NOTE!! The Following Points are FITTED DATA: #Stress_Units= KSI #_Total Strain 2Nf Stress Mean Plastic Strain Initial #_ Amp Amp Stress Amp Elastic Mod. 0.15 1 325. 0. 0.11 25976. #Fitted_point 0.06 9 285. 0. 0.045 25976. #Fitted_point 0.02 175 260. 0. 0.014 25976. #Fitted_point 0.0135 500 247. 0, 0.0018 25976. #Fitted_point 0.01 1000 230. 0. 0.0013 25976. #Fitted_point 0.008 2600 205. 0. 0.0008 25976. #Fitted_point 0.007 4000 181. 0. 0.00065 25976. #Fitted_point 0.0044 40000 114. 0. 0.0002 25976. #Fitted_point 0.0040 60000 103. 0. 0.00017 25976. #Fitted_point 0.0040 2000000 103. 0. 0. 25976. #Fitted_point #Strain Life Curve appears to have flat fatigue limit #