# #Copyright (C) 2011 F.A.Conle #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 Points of Periodic Overload Tests! # Cast Aluminum 319, Low + High Gas Porosity merged file # Periodic overload results at Strain Ampl less than 0.0023 # 5.9%wt Si, 3.4Cu 0.07Cr .38Mn .25Mg .91Fe .07Ni # Sources: The data points were digitized from graphs in the papers: # A.A.Dabayeh, et al, "Fatigue of cast aluminum alloys under constant and # variable-amplitude loading," Int.J.Fat. V18 N2 pp.95-104 1996. # A.A.Dabayeh, et al, "An experimental study of the effect of a flaw at a # notch root on the fatigue life of cast Al 319," Int.J.Fat. V20 N7 # pp.517-530 1998. # Note: Data may contain errors from digitization process. # #FileType= strain_life #DataType= fitted #TIMEcol= 0 #NAME= 319 #NAME= CastAluminum #NAME= Low+HiGasPorosity #Stress_units= mpa #Strain_units= strain #Su= 149. mpa #eu= .0106 #Sy= 196. mpa #E= 69170. # assume Low gas value #FractureStrain= 0.0106 #FractureStress= 196. #BHN= 0. # 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. 0.0106 1 196. 0 0.0078 69170. #Tensiledata 0.00512 40 189.8 0. 0.00238 69170. #Fitted_point manually 0.00414 100 189.2 0. 0.00141 69170. #Fitted_point manually 0.00317 900 187.8 0. 0.00045 69170. #Fitted_point manually 0.00216 4000 149.6 0. -0.00000 69170. #Fitted_point manually 0.00142 10000 98.1 0. -0.00000 69170. #Fitted_point 0.00119 20000 82.2 0. -0.00000 69170. #Fitted_point 0.00094 50000 65.2 0. 0.00000 69170. #Fitted_point 0.00079 100000 54.8 0. 0.00000 69170. #Fitted_point 0.00067 200000 46.1 0. -0.00000 69170. #Fitted_point 0.00053 500000 36.8 0. 0.00000 69170. #Fitted_point 0.00038 1000000 26.1 0. -0.00000 69170. #Fitted_point manually 0.00030 2000000 20.9 0. 0.00000 69170. #Fitted_point manually 0.00025 5000000 17.6 0. 0.00000 69170. #Fitted_point manually 0.00021 20000000 14.8 0. 0.00000 69170. #Fitted_point 0.00021 20000000 14.8 0. 0.00000 69170. #Fitted_point assume runout # #