1) Determine unmodified fatigue strength (units = MPa) ofhot-rolled 1030 steel shaft in axial loading for a design life of10,000 cycles. Do not apply any fatigue correction factors. SN__________ MPa
2) Determine unmodified fatigue strength (units = ksi) for anormalized 4130 steel shaft in bending for a design life of 10^7cycles. Do not apply any fatigue correction factors. SN __________ksi
3) Determine unmodified fatigue strength (units = MPa) forcold-rolled 3003 aluminum rod in torsion for a design life of 10^8cycles. Do not apply any fatigue correction factors. SN __________MPa
4) Determine fatigue correction factors for the 0.43 inch DIAshaft from H04 using 4340 steel (quenched and tempered at 800° F).The surface of the shaft was machined but was not ground. The shaftis in bending and torsion, operates in normal environmentaltemperatures and should have 99.9% reliability. Cload _________Csize _________ Csurf _________ Ctemp _________ Creliab_________
5) Determine modified fatigue strength (units = ksi) of for thesteel shaft from H04 and problem 4) above for a design life of 10^9cycles. SN __________ ksi
