#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 # # Merged A356-T6 file from 3 References: # Refs.: # 1. : R.I. Stephens, et al , SAE SP-760, # paper 881701, 1988. # 2. : McDowell, et al, Engr.Frac.Mech., V70, # 2003, pg.49-80. # 3. : S.G.Schaefer UoWaterloo MSc. thesis 1985 # 4. : Odegard and Pedersen, Sae 940811 1994 # - #FileType= strain_life #DataType= raw #TIMEcol= 0 #NAME= A356-T6 #NAME= CastAluminum #Stress_units= mpa #Strain_units= strain #Su= 262 mpa = 38.0 ksi #Sy= 224 mpa = 32.5 ksi #E= 72345 mpa = 10500. ksi #%RA= 3.5 #BHN= 0. #NO. FAT. PTS.= 50 #strAmp 2Nf stsAmp_mpa So PlasStrAmp Ini_modulus NeubEqvStsAmp 0.01 16 308 0 0.0056 72345 472 0.01 38 313 0 0.00558 72345 476 0.007 46 295 0 0.00292 72345 386 0.007 54 287 0 0.003 72345 381 0.007 68 295 0 0.00284 72345 386 0.007 74 296 0 0.0029 72345 387 0.007 112 301 0 0.00284 72345 390 0.005 134 263 0 0.00133 72345 308 0.005 250 269 0 0.00117 72345 312 0.005 268 269 0 0.00082 72345 312 0.005 272 276 0 0.00109 72345 316 0.005 414 272 0 0.00108 72345 314 0.005 482 275 0 0.00104 72345 315 0.005 686 287 0 0.00096 72345 322 0.005 786 297 0 0.00067 72345 328 0.005 890 287 0 0.00099 72345 322 0.005 908 288 0 0.00089 72345 323 0.005 974 290 0 0.00068 72345 324 0.005 1200 287 0 0.00102 72345 322 0.004 2300 267 0 0.00002 72345 278 0.003 6500 225 0 0 72345 221 0.003 7320 207 0 0 72345 212 0.003 7700 200 0 0.00012 72345 208 0.003 9966 200 0 0.00012 72345 208 0.003 10476 212 0 0 72345 214 0.003 12044 208 0 0 72345 213 0.003 12188 202 0 0 72345 209 0.003 14494 212 0 0 72345 214 0.003 15178 216 0 0.00018 72345 217 0.003 15670 214 0 0.00009 72345 215 0.003 18000 214 0 0 72345 215 0.002 116180 150 0 0 72345 147 0.002 140000 143 0 0 72345 144 0.002 154886 128 0 0 72345 136 0.002 182580 132 0 0.0001 72345 138 0.002 234746 147 0 0 72345 146 0.002 257580 132 0 0.0001 72345 138 0.0015 200000 150 0 0 72345 127 0.0015 337448 101 0 0 72345 105 0.0015 552200 107 0 0 72345 108 0.0015 610280 108 0 0 72345 108 0.0015 626780 104 0 0 72345 106 0.0015 698000 107 0 0 72345 108 0.0015 781510 103 0 0 72345 106 0.0015 853954 112 0 0 72345 110 0.0015 1230000 110 0 0 72345 109 0.0015 1340000 104 0 0 72345 106 0.001 29000000 72 0 0 72345 72 #runout 0.001 32000000 72 0 0 72345 72 #runout 0.001 46000000 70 0 0 72345 71 #runout ## Ref.: UoWaterloo, S.G.Schaefer 1985 MSc. thesis ## BS-L99 AA-A356-T6 Die cast aluminum fatigue data file ## Material does not cyclically harden or soften substantially. See curves. ## Cut from truck wheel ribs. Test section 5mm diam. ##FileType= strain_life ##DataType= raw ##Name= BS_L99_Alum ##Name= AA-A356-T6 ##Name= Al-DieCast ##Stress_units= MPa ##Strain_units= strain ##Sy= 213. ##Su= 239. ##eu= 0.0149 (true strain at ultimate stress ##E= 71000. # 71000 fits the cyclic data much better, ##_ # Was reported as 61000, but cyclic curve doesnt fit. Changed. ##_ # You can change it back and run file again, but you should ##_ # also change the plastic strains in the data table. ##monotonic_K= 318. #These are based on measured plastic strains. ##monotonic_n= 0.062 ##FractureStrain= 0.0136 ##FractureStress= 242. ## The reported fracture strain is probably incorrect. It is less than ## the eng. strain at ultimate. ##%RA= 1.4 ##MaterialForm= component #Ribs of a production truck wheel ##FailureDef= 50% load drop ##Hardness, Vickers= 79 #? ##Bhn= 0 # vickers no. is too low to be converted ##_Note: recalculated plastic strain based on changed modulus. FAC 2010 #StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus #.0149 1 242 0 .0120 71000 #MonotonicTest Fract.stress and ultimate strain .0050 94 230. 0 .0018 71000 #None .0050 132 234 0 .0018 71000 #OutsideGL .0025 17474 166 0 .00016 71000 #OutsideGL .0025 19560 178 0 .000 71000 #None .0018 71000 126 0 .000 71000 #None .0012 1983360 85 0 .0 71000 #None .0010 2000000 73 0 0 71000 #None .0010 3000000 70 0 0 71000 #OutsideGL .0010 3400000 73 0 0 71000 #None # #McDowell ##FileType= strain_life ##DataType= raw ##TIMEcol= 0 ##NAME= A356-T6 ##NAME= CastAlum ##Strain_units= strain ##Stress_units= mpa ##Sy= 0. mpa not reported ##Su= 310. ##eu= 0.01 not reported, guess from cyclic stress-strain ##E= 71000 mpa ##%RA= 0. % not reported ##BHN= 0. not reported ##FractureStrain= 0.01 not reported, guess from cyclic stress-strain ##FractureStress= 310. not reported, assume = Su ##monotonic_K= 0 not reported ##monotonic_n= 0 not reported ##elongation= 0 % not reported ##TotStrAmpl 2Nf StsAmpl So PlasStrAmpl Modulus NeubEqStsAmp 0.00801 39 301 0 0.00376 71000 414 0.00799 48 301 0 0.00375 71000 414 0.00796 56 304 0 0.00369 71000 414 0.00795 106 308 0 0.00361 71000 417 0.00796 131 308 0 0.00363 71000 417 0.00600 486 300 0 0.00177 71000 357 0.00601 891 302 0 0.00175 71000 359 0.00498 1642 298 0 0.00078 71000 324 0.00397 632 255 0 0.00038 71000 268 0.00394 749 254 0 0.00036 71000 267 0.00395 855 271 0 0.00014 71000 275 0.00396 1585 270 0 0.00016 71000 275 0.00397 2173 276 0 0.00009 71000 279 0.00398 4418 271 0 0.00015 71000 277 0.00297 12386 219 0 0.00000 71000 215 0.00297 21360 217 0 0.00000 71000 214 0.00199 111712 151 0 0.00000 71000 146 0.00199 119937 149 0 0.00000 71000 145 0.00198 207626 148 0 0.00000 71000 143 0.00199 244668 150 0 0.00000 71000 145 0.00199 300758 147 0 0.00000 71000 144 0.00200 361914 145 0 0.00000 71000 142 0.00168 500998 124 0 0.00000 71000 122 0.00166 545764 124 0 0.00000 71000 121 0.00138 846334 104 0 0.00000 71000 101 0.00139 1018674 103 0 0.00000 71000 101 0.00110 4533880 83 0 0.00000 71000 81 0.00099 20063000 71 0 0.00000 71000 72 #runout # #Mean Stress test, if you wish to activate for the plot remove #the "#" character in the first col of data lines. #Only the last column, a mean stress corrected term, should #cause the data point to fall on the fully reversed line. ## sqrt(Smax*Sa) #0.00169 661146 120 34.5 0 71000 136 #0.00097 883292 69 103.5 0 71000 109 #0.00097 989968 69 103.5 0 71000 109 #0.00071 689224 50 207 0 71000 113 #0.00068 2079360 48 103.5 0 71000 85 #0.00068 2668600 48 103.5 0 71000 85 # # ## Odegard, Pedersen 1994 ##FileType= strain_life ##DataType= raw ##TIMEcol= 0 ##NAME= A356-T6 ##NAME= AlSi7Mg ##NAME= CastAlum ##Strain_units= strain ##Stress_units= mpa ##Sy= 222. mpa not reported ##Su= 288. ##eu= 0.06 # taken from 6% elongation ##E= 71500 mpa Assumed from other A356 reports ##%RA= 0. % not reported ##BHN= 0. not reported ##FractureStrain= 0.06 not reported, guess from cyclic stress-strain ##FractureStress= 288. not reported, assume = Su ##monotonic_K= 0 not reported ##monotonic_n= 0 not reported ##TotStrAmpl 2Nf StsAmpl So PlasStrAmpl Init.Modulus NeubEqStsAmp 0.00238 32733 170 0 0 71500 170 0.00237 98629 170 0 0 71500 170 0.00238 106378 170 0 0 71500 170 0.00195 113817 140 0 0 71500 140 0.00210 165271 150 0 0 71500 150 0.00210 260036 150 0 0 71500 150 0.00196 277602 140 0 0 71500 140 0.00196 327854 140 0 0 71500 140 0.00196 343058 140 0 0 71500 140 0.00169 406056 121 0 0 71500 121 0.00168 431288 120 0 0 71500 120 0.00168 638836 120 0 0 71500 120 0.00141 773486 100 0 0 71500 100 0.00140 1007536 100 0 0 71500 100 0.00126 1477272 90 0 0 71500 90 0.00126 1581216 90 0 0 71500 90 0.00112 1993276 80 0 0 71500 80 0.00112 21376400 80 0 0 71500 80 #runout # #