# # SAE4120 modified, Simulated 1900F Carb. Core, HRc=41.7 # Four Pt bending tests of AISI 4120(Mod) Core 1900F Steel # Original Chem: .20C .83Mn .009P .008S .31Si .85Cr .15Ni .20Mo # .20Cu .040Al .0006Ca .0010Pb Source: Chrysler # Stress converted from loads using Elastic Mc/I analysis # Moment arm of load couple is 2.5 inch. I =0.00065104 in^4 # There were mean loads observed during testing # Tested by W.H.Liang, UWaterloo, 2018 #FileType= strain_life #DataType= raw #Name= SAE4120modCore 1900F Steel #Name= 4ptBendSample #Name= AISIit199 #Stress_Units= mpa #Strain_Units= strain #Sy= 0 #Su= 0 #E= 172524 #monotonic_K= 0 #monotonic_n= 0. #MaterialForm= bar #FailureDef= 50% load drop #BHN= 388 from HRc=41.72 #NOTE! Stress converted from loads using Elastic Mc/I analysis #StrAmp 2Nf StsAm So PlsStr Emod 0.009333 1934 1518 0.00 0 162667 0.008733 2818 1431 0.00 0 163895 0.008760 3070 1417 0.00 0 161743 0.006467 8812 1177 0.00 0 182000 0.006915 11930 1129 0.00 0 163321 0.005733 16684 1071 0.00 0 186880 0.006740 18490 1034 0.00 0 153444 0.005900 19440 1009 0.00 0 171084 0.005315 25600 970 0.00 0 182520 0.004560 72350 815 0.00 0 178719 0.004100 73590 790 0.00 0 192717 0.004255 77700 805 0.00 0 189100 0.004410 100360 732 0.00 0 166037 0.003880 142170 660 0.00 0 170059 0.003020 256680 523 0.00 0 173282 0.003290 316262 573 0.00 0 174150 0.002737 702390 484 0.00 0 176862 0.002833 2000000 445 0.00 0 156957 #runout 0.002640 2000000 465 0.00 0 176286 #runout 0.002455 2000000 465 0.00 0 189571 #runout # #