# #Copyright (C) 2015 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 #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!!: Periodic overload test data ! # DP590 Dual Phase Steel, from 2mm sheet, # Periodic overloads +/-339 mpa. See Thesis for details # Chem.: 0.09wt% 1.01Mn .01P .01S .28Si Cu, Ni, Mo lt .02, .0Cr .04Al # .01Sn .01N # Monotonic Tension curve is close to the cyclic curve. # Ref.: Maria El Zeghayar, "The Introduction of Crack Opening Stress # Modeling into Strain-Life And Small Crack Growth Fatigue Analysis," # Dept. Civil Engr. Univ. of Waterloo, 2010. #FileType= strain_life #DataType= fitted #TimeCol= 0 #Name= DP590steel #Name= DualPhase #Stress_units= mpa #Strain_units= strain #E= 209000 #Sy= 349. #Su= 523. (appears to be a bit low. Should be 590) #eu= 0.17 engineering (estimated from %Elongation) #%RA= 53. #FractureStress= 643. #FractureStrain= 0.76 #%Elongation= 34 (over 10mm) #monotonic_K= 730 #monotonic_n= 0.12 #BHN= 171 (HRc=6 measured) # #saedigcurve_v2.2.f starts. #NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n' #StrAmp 2NF StsAmp MeanS PlasStr EMod. NeubEqvStsAmpl 0.76 1 643 0. 0.757 209000. #Fitted_point monotonic 0.01029 2000 440.8 0. 0.00818 209000. #Fitted_point 0.00758 5000 407.7 0. 0.00563 209000. #Fitted_point 0.00605 10000 383.9 0. 0.00421 209000. #Fitted_point 0.00485 20000 360.8 0. 0.00313 209000. #Fitted_point 0.00366 35000 331.2 0. 0.00208 209000. #Fitted_point manually 0.00298 45000 309.4 0. 0.00150 209000. #Fitted_point manually 0.00244 55000 287.8 0. 0.00106 209000. #Fitted_point manually 0.00189 80000 259.5 0. 0.00064 209000. #Fitted_point manually 0.00157 100000 238.1 0. 0.00043 209000. #Fitted_point manually 0.00131 150000 216.6 0. 0.00027 209000. #Fitted_point manually 0.00104 300000 188.4 0. 0.00014 209000. #Fitted_point manually 0.00088 600000 167.5 0. 0.00008 209000. #Fitted_point manually 0.00075 1000000 147.5 0. 0.00004 209000. #Fitted_point manually 0.00061 5000000 123.6 0. 0.00002 209000. #Fitted_point manually 0.00052 15000000 107.7 0. 0.00001 209000. #Fitted_point manually 0.00045 40000000 93.7 0. 0.00000 209000. #Fitted_point manually 0.00038 200000000 78.1 0. 0.00000 209000. #Fitted_point manually #