A structural member must be able to support repeated tension-compression loads (load amplitude is 66800 N,...

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A structural member must be able to support repeated tension-compression loads (load amplitude is 66800 N, R=-1) without experiencing a fatigue fracture for at least 100 000 cycles. The structure should be as light as possible. Which of the given materials (whose properties and S-N diagrams are given below) would you select for this application to meet these criteria? Show all your derivations and calculations. 1MPa 10 N/m. (Hint: first derive an equation for the weight) ALLOY 1045 Steel 2014-T6 Al Alloy Red Brass Stress amplitude, S (MPa) 500 400 300 200 100 0 10 Yield Strength (MPa) 660 300 280 104 105 E(MPa) 210,000 70,000 100,000 1045 steel Density(g/cm) 7.9 2.7 8.6 2014-T6 aluminum alloy Red brass 106 107 108 Cycles to failure, N 10 80 70 60 50 40 30 20 10 0 100 A structural member must be able to support repeated tension-compression loads (load amplitude is 66800 N, R=-1) without experiencing a fatigue fracture for at least 100 000 cycles. The structure should be as light as possible. Which of the given materials (whose properties and S-N diagrams are given below) would you select for this application to meet these criteria? Show all your derivations and calculations. 1MPa 10 N/m. (Hint: first derive an equation for the weight) ALLOY 1045 Steel 2014-T6 Al Alloy Red Brass Stress amplitude, S (MPa) 500 400 300 200 100 0 10 Yield Strength (MPa) 660 300 280 104 105 E(MPa) 210,000 70,000 100,000 1045 steel Density(g/cm) 7.9 2.7 8.6 2014-T6 aluminum alloy Red brass 106 107 108 Cycles to failure, N 10 80 70 60 50 40 30 20 10 0 100

Answer rating: 100% (QA)

The provided image includes a table with material properties and an SN stress versus number of cycles diagram for three different materials 1045 steel 2014T6 aluminum alloy and red brass Your task is ... View the full answer