# saedigcurve_v2.2.f starts. #Copyright (C) 2022 Fatigue Design + Evaluation Comm. 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 # AA2124-T851 aluminum !!! FITTED CURVE DATA file !!! # Warning: not enough long life data for a good fitted file. # Chem.: 3.8-4.2Cu 1.2-1.8Mg 0.4-0.9Mn .3Fe .2Si .lt.0.1Cr .lt.0.15Ti .lt.0.25Zn # Heat Treated to the T851 temper, Solution treat 1hr at 498C # Aged 12 hrs at 190C # Spec. 6.0 mm in diameter and 12 mm in gauge-length # Ref.: Hong Hao, Duyi Ye, Yingzhen Chen, Feng Mi, Jianzhong Liu # Ref.: "A study on the mean stress relaxation behavior of 2124-T851 # Ref.: aluminum alloy during low-cycle fatigue at different strain ratios". # Ref.: Materials and Design 67 (2015) 272–279 # Some data also from # Ref.: Hong Hao, Duyi Ye, Chuanyong Chen, "Strain ratio effects on # Ref.: low-cycle fatigue behavior and deformation microstructure # Ref.: of 2124-T851 aluminum alloy", # Ref.: Materials Science + Engineering A 605 (2014) 151–159 # Material slightly cyclically softens #FileType= strain_life #DataType= fitted #TIMEcol= 0 #NAME= AA2124-T851 #NAME= Aluminum #Stress_units= mpa #Strain_units= strain #Sy= 440 mpa #Su= 508 #E= 73500 #%RA= 28 % #K= 591 #n= 0.053 #BHN= 0 # # NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n' #Stress_Units= MPa # Total Strain 2Nf Stress Mean Plastic Strain Initial # Amp Amp Stress Amp Elastic Mod. 0.42400 1 605.5 0. 0.41576 73500. #Fitted_point 0.26583 2 581.5 0. 0.25792 73500. #Fitted_point 0.14487 5 551.3 0. 0.13737 73500. #Fitted_point 0.09262 10 529.5 0. 0.08541 73500. #Fitted_point 0.06010 20 508.7 0. 0.05318 73500. #Fitted_point 0.03507 50 482.5 0. 0.02851 73500. #Fitted_point 0.02414 100 463.7 0. 0.01783 73500. #Fitted_point 0.01724 200 445.7 0. 0.01117 73500. #Fitted_point 0.01179 500 423.0 0. 0.00603 73500. #Fitted_point 0.00931 1000 406.6 0. 0.00378 73500. #Fitted_point 0.00767 2000 390.6 0. 0.00235 73500. #Fitted_point 0.00626 5000 369.7 0. 0.00123 73500. #Fitted_point 0.00555 10000 353.8 0. 0.00073 73500. #Fitted_point 0.00501 20000 337.5 0. 0.00042 73500. #Fitted_point 0.00448 50000 315.4 0. 0.00019 73500. #Fitted_point 0.00416 100000 298.4 0. 0.00010 73500. #Fitted_point 0.00388 200000 281.8 0. 0.00005 73500. #Fitted_point 0.00357 500000 261.0 0. 0.00002 73500. #Fitted_point 0.00336 1000000 246.2 0. 0.00001 73500. #Fitted_point 0.00317 2000000 232.4 0. 0.00001 73500. #Fitted_point 0.00293 5000000 215.4 0. 0.00000 73500. #Fitted_point 0.00277 10000000 203.5 0. 0.00000 73500. #Fitted_point 0.00262 20000000 192.2 0. 0.00000 73500. #Fitted_point 0.00243 50000000 178.4 0. 0.00000 73500. #Fitted_point 0.00229 100000000 168.6 0. 0.00000 73500. #Fitted_point 0.00217 200000000 159.4 0. 0.00000 73500. #Fitted_point 0.00201 500000000 147.9 0. 0.00000 73500. #Fitted_point 0.00190 1000000000 139.8 0. 0.00000 73500. #Fitted_point # #