#SAE_Standard_File= #Copyright (C) 2012 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: Fitted Data !! # of a Merged Data File. AA7075_T6xx Aluminum Wrought # Ref.1: M.Sc. Thesis by P. Kurath Univ. of Illinois. # Ref.2: ENDO T.,J.MORROW, ASTM J. OF MATERIALS, VOL.4,P.159, 1969 # Ref.3 : G.Ramusat and G.Vidal, "Fatigue oligocyclique de six alliages # d'aluminium en efforts et en deformations imposes," Memoires Scientifiques # Revue Metallurgie, Jan. 1979. pg23-36. #FileType= strain_life #DataType= fitted #TIMEcol= 0 #Name= Merged #NAME= AA7075T6xx #Name= Aluminum #Stress_units= mpa #Strain_units= strain #Sy= 480 average of (492,468) #Su= 566 average of (553,578) #E= 69980. average of (70000,70953,69010) #%RA= 35.3 avg. of (33,37.6) #BHN= 150 (from Rasmusat/Vidal) #FractureStrain= 0.408 #computed from %RA #FractureStress= 786. # #saedigcurve_v2.2.f starts. #NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n' #TotalStrain 2Nf Stress Mean Plastic Strain Initial #_ Amp Amp Stress Amp Elastic Mod. 0.408 1 786. 0. .397 69980 #Fitted_point monotonic 0.01700 300 605.6 0. 0.00835 69980. #Fitted_point manually 0.01158 650 572.7 0. 0.00340 69980. #Fitted_point Manually 0.00937 1000 545.8 0. 0.00157 69980. #Fitted_point 0.00796 2000 514.4 0. 0.00061 69980. #Fitted_point 0.00674 4500 463.4 0. 0.00011 69980. #Fitted_point manually 0.00607 9000 422.9 0. 0.00003 69980. #Fitted_point manually 0.00553 15000 386.4 0. 0.00001 69980. #Fitted_point manually 0.00493 33000 345.0 0. 0.00000 69980. #Fitted_point manually 0.00454 66000 317.7 0. 0.00000 69980. #Fitted_point manually 0.00419 140000 293.0 0. 0.00000 69980. #Fitted_point manually 0.00377 350000 263.7 0. 0.00000 69980. #Fitted_point manually 0.00348 820000 243.6 0. 0.00000 69980. #Fitted_point manually 0.00322 1450000 225.1 0. 0.00000 69980. #Fitted_point manually #Original test data ends at about 2Nf=3000000 0.00268 10000000 187.5 0. 0.00000 69980. #Fitted_point #
