# #Copyright (C) 2010 Fatigue Design + Evaluation Comm. #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 # # Note!: Data is a Fitted Curve! # AZ91-T4 Magnesium Pressure die cast and Sol. annealed at 413 °C for 16 hours. # Warning!: Tests initially overstrained due to load control testing. # Material exhibits very substantial cyclic hardening. # AZ 91 Chem.: Al Zn Cu Mn Si Fe Ni (in wt. %). # This Study: 8.2 0.72 0.00 0.22 0.00 0.005 0.00 # Standard 8.1-9.7 0.35-1 lt.0.35 0.13-0.35 lt.0.5 lt.0.005 lt.0.03 # Ref.: Aneta Nemcova, J.Zapletal and T.Podrabsky, "Fatigue Behaviour of AZ91 # Magnesium Alloy," Trans of the VSB – Tech Univ of Ostrava, Mech Series # No.3, 2009, vol. LV article No. 1732. # Note: data digitized from graphs. Some errors possible. # #FileType= strain_life #DataType= fitted #TIMEcol= 0 #NAME= AZ91-T4 #Name= Magnesium #Name= PressureDieCast #Stress_units= mpa #Strain_units= strain #Su= 235. #mpa #Sy= 95. #E= 43100. #Reported in Ref. ##TrueFractureStrain= 0.066 #TrueFractureStress= 198. #mpa #%RA= 10.4 #BHN= 0. #NO. FAT. PTS.= 11 in raw file # # NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n' #_Note: Manually fitted the pt at 2Nf = 1 #_Total Strain 2Nf Stress Mean Plastic Strain Initial #____Amp Amp Stress Amp Elastic Mod. #___.066 1 198. 0. .0614 43100 #From tensile test .066 1 250. 0. .0601 43100 #Fitted_point manually #Due to cyclic hardening effects the true frac stress pt above has been adjusted #from a value of 198. to 250 mpa. 0.03995 100 235.5 0. 0.03449 43100. #Fitted_point manually 0.01860 400 204.9 0. 0.01385 43100. #Fitted_point manually 0.01122 1000 184.4 0. 0.00694 43100. #Fitted_point 0.00733 2000 165.9 0. 0.00348 43100. #Fitted_point 0.00477 5000 144.5 0. 0.00141 43100. #Fitted_point 0.00375 10000 130.5 0. 0.00072 43100. #Fitted_point 0.00312 16000 118.1 0. 0.00038 43100. #Fitted_point manually 0.00257 33000 103.9 0. 0.00016 43100. #Fitted_point manually 0.00228 51000 94.4 0. 0.00009 43100. #Fitted_point manually 0.00204 100000 85.9 0. 0.00005 43100. #Fitted_point manually 0.00178 200000 75.9 0. 0.00002 43100. #Fitted_point manually 0.00161 400000 69.0 0. 0.00001 43100. #Fitted_point manually 0.00146 1000000 62.8 0. 0.00001 43100. #Fitted_point manually 0.00129 3500000 55.4 0. 0.00000 43100. #Fitted_point manually # 0.00117 10000000 50.4 0. 0.00000 43100. #Fitted_point 0.00117 20000000 50.4 0. 0.00000 43100. #Fitted_point manually #
#TOTDAM(SWT)= 0.0000000E+00 allowed Repeats= inf nrev= 1
