# #Copyright (C) 2012 F.D.E. Committee #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 !! # A36 Steel Normalized # Cut from 1.5inch square bar. (38X38mm) # Ref.: P.Dindinger report to Fat.Des.+Eval. Comm. Apr.2012 # Material cyclicly softens at strain amplitudes below 0.0035 # #FileType= strain_life #DataType= fitted #TIMEcol= 0 #NAME= ASTM-A36 #NAME= Normalized #NAME= Steel #Stress_units= ksi #Strain_units= strain #Sy= 0. 0.2pc offset, mpa #Su= 69. ksi assumed from Reemsnyder #eu= 0 #strain at Su not reported #E= 29556. ksi = 203600 mpa #FractureStrain= 0 not reported #FractureStress= 0. not reported #monotonic_K= 0 not reported #monotonic_n= 0 not reported #BHN= 138. #%RA= 0. % not reported #saedigcurve_v2.2.f starts. # # 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. 0.47392 1 122.7 0. 0.46977 29556. #Fitted_point 0.01150 2000 59.8 0. 0.00948 29556. #Fitted_point 0.00778 5000 54.8 0. 0.00592 29556. #Fitted_point 0.00589 10000 51.4 0. 0.00415 29556. #Fitted_point 0.00453 20000 48.1 0. 0.00291 29556. #Fitted_point 0.00331 50000 44.1 0. 0.00181 29556. #Fitted_point 0.00267 100000 41.3 0. 0.00127 29556. #Fitted_point 0.00220 200000 38.7 0. 0.00089 29556. #Fitted_point 0.00176 500000 35.5 0. 0.00056 29556. #Fitted_point 0.00151 1000000 33.2 0. 0.00039 29556. #Fitted_point #Orignal test data ends at 2Nf = 1.3million. Below is extrapolated: 0.00133 2000000 31.1 0. 0.00027 29556. #Fitted_point 0.00114 5000000 28.5 0. 0.00017 29556. #Fitted_point #