# # Fitted Curve ! # SAE5150 Normalized Rc=23.3, BHN=245 # BasicOxygen, ConCast, 2.25inchDiam Bar, Normalized # Crankshaft type material, 90%Pearlite, 10%Ferrite # ASTM GrainSize 6 to 7, Inclusions: TypeA=1.5Thin, TypeB,C,D not found # Test: UoToledo F.Yin A.Fatemi Nov.2000 # saedigcurve_v2.2.f starts. #FileType= strain_life #DataType= fitted #Name= SAE5150 #Name= AisiIt_32 #Stress_units= MPa #Strain_units= strain #Sy= 471.8 #Su= 867.1 #E= 207700 average of 17, intial report=210000 #monotonic_K= 1630.0 #monotonic_n= 0.207 #FractureStrain= .82 #FractureStress= 1382. #%RA= 56. #MaterialForm= bar #FailureDef= 50% load drop #BHN= 245 #Hardness, Rockwell C= 23.3 #StrAmp 2Nf StsAmp So CalcPlasStr InitialModulus #Basic Oxygen= True #Electric Furnace= False #Vacuum Degas= False #Ladle Refined= False #Ingot Cast= False #Continuous Cast= True #Pearlite, %= 90 #Ferrite, %= 10 #ASTM Grain Size No. (Min to Max)= 6 to 7 #Carbon, %= 0.49 #Manganese, %= 0.85 #Phosphorus, %= 0.007 #Sulfur, %= 0.029 #Silicon, %= 0.23 #Nickel, %= 0.07 #Chromium, %= 0.77 # SAE5150 AisiIt_32 BHN= 245 Fn= 0 # Monotonic Props. Cyclic Props. #ELAS. MOD.= 30124. KSI, 208. GPA K' = 220.5 KSI, 1520.MPA #YIELD,0.2%= 68. KSI, 472. MPA N' = 0.1817 #ULT. STRG.= 126. KSI, 867. MPA F. STRG COEF= 223.7 KSI, 1543.MPA #K = 0.0 KSI, 0. MPA F.STRG EXP, b=-0.1151 #N = 0.0000 FAT DUCT COEF= 1.0831 #RED. IN AREA = 56.0 F.DUCT EXP, c=-0.6333 #T. FRAC. STG.= 200.4 KSI, 1382. MPA Exp Cyc Yld = 71. Ksi, 492.MPA #T. FRAC. STR.= 0.820 Fit Cyc Yld = 72. Ksi, 495.MPA #No. fatigue data points= 18 # # NOTE!! The Following Points are <b>FITTED DATA:</b>#NOTE!! Fitted Stress computed using Experm. K' and n' #Stress_Units= MPa # Total Strain 2Nf Stress Mean Plastic Strain Initial # Amp Amp Stress Amp Elastic Mod. .82 1 1382. 0. .813 207700. #Fitted_point manually 0.02479 500 755.4 0. 0.02115 207700. #Fitted_point 0.01700 1000 698.3 0. 0.01363 207700. #Fitted_point 0.01189 2000 645.5 0. 0.00878 207700. #Fitted_point 0.00771 5000 581.7 0. 0.00491 207700. #Fitted_point 0.00575 10000 537.6 0. 0.00316 207700. #Fitted_point 0.00442 20000 496.7 0. 0.00203 207700. #Fitted_point 0.00328 50000 447.3 0. 0.00113 207700. #Fitted_point 0.00271 100000 413.1 0. 0.00072 207700. #Fitted_point 0.00230 200000 381.3 0. 0.00046 207700. #Fitted_point 0.00191 500000 343.0 0. 0.00026 207700. #Fitted_point 0.00169 1000000 316.5 0. 0.00016 207700. #Fitted_point 0.00151 2000000 292.0 0. 0.00010 207700. #Fitted_point .00149 2000000 291. 0. .00011 207700. #Fitted_point manually .00149 10000000 291. 0. .00011 207700. #Fitted_point manually #