# # Fitted Data ! # Copyright (C) 2009 Fatigue Design + Evaluation 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 # # Q1001PM M1001 PowderMetal Steel, QQ 0.45%Carbon QMP # Tested: Chernenkoff, R.A. et al.,<b> "Material Characterization of Powder-Forged # Copper Steels,"</b> SAE Tech paper 910155, 1991. # #Fn= 488 #FileType= strain_life #DataType= fitted #TIMEcol= 0 #NAME= Q1001PM #NAME= M1001 #NAME= PMSteel #Stress_units= ksi #Strain_units= strain #Su= 111.30 #Sy= 81.10 #E= 29500. #%RA= 33.4 #BHN= 234. #NO. FAT. PTS.= 7 # # Q1001PM M1001 BHN= 234 Fn= 488 # Monotonic Props. Cyclic Props. #ELAS. MOD.= 29500. KSI, 203. GPA K' = 250.3 KSI, 1726.MPA #YIELD,0.2%= 81. KSI, 559. MPA N' = 0.1753 #ULT. STRG.= 111. KSI, 767. MPA F. STRG COEF= 220.2 KSI, 1518.MPA #K = 0.0 KSI, 0. MPA F.STRG EXP, b=-0.1122 #N = 0.0000 FAT DUCT COEF= 0.4807 #RED. IN AREA = 33.4 F.DUCT EXP, c=-0.6396 #T. FRAC. STG.= 0.0 KSI, 0. MPA Exp Cyc Yld = 84. Ksi, 580.MPA #T. FRAC. STR.= 0.000 Fit Cyc Yld = 80. Ksi, 551.MPA #No. fatigue data points= 7 # # NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n' # NOTE!! It is not clear from the raw data if there is a flat fatigue limit at long life. # Total Strain 2Nf Stress Mean Plastic Strain Initial # Amp Amp Stress Amp Elastic Mod. 0.48820 1 181.8 0. 0.48204 29500. #Fitted_point 0.01275 500 100.6 0. 0.00933 29500. #Fitted_point 0.00923 1000 94.3 0. 0.00604 29500. #Fitted_point 0.00690 2000 88.3 0. 0.00391 29500. #Fitted_point 0.00494 5000 81.0 0. 0.00220 29500. #Fitted_point 0.00399 10000 75.8 0. 0.00141 29500. #Fitted_point 0.00331 20000 70.9 0. 0.00091 29500. #Fitted_point 0.00269 50000 64.8 0. 0.00050 29500. #Fitted_point 0.00236 100000 60.4 0. 0.00031 29500. #Fitted_point 0.00209 200000 56.2 0. 0.00019 29500. #Fitted_point 0.00182 500000 50.8 0. 0.00010 29500. #Fitted_point 0.00165 1000000 47.1 0. 0.00006 29500. #Fitted_point 0.00151 2000000 43.5 0. 0.00003 29500. #Fitted_point # Last raw data point near 2000000 0.00135 5000000 39.3 0. 0.00002 29500. #Fitted_point 0.00124 10000000 36.3 0. 0.00001 29500. #Fitted_point 0.00114 20000000 33.5 0. 0.00001 29500. #Fitted_point 0.00103 50000000 30.2 0. 0.00000 29500. #Fitted_point 0.00095 100000000 27.9 0. 0.00000 29500. #Fitted_point 0.00088 200000000 25.8 0. 0.00000 29500. #Fitted_point 0.00079 500000000 23.3 0. 0.00000 29500. #Fitted_point 0.00073 1000000000 21.6 0. 0.00000 29500. #Fitted_point #