Question

aluminum bar is subjected to repeated tension-compression cycling along 4. (10) A cylindrical 2014-T6 its axis (200 MPa stress) a) Will the bar fail from fatigue? b) if bar does fail, how many cycles to ; and c) with bar diameter of 0.01 m, what load caused failure? Show work on graph. ailure; and c) with bar diameter of 0.01 m, what load caused failure? Show wor N 10 80 500 70 60 400 50 1045 stee lo 300 140 2014-T6 aluminum altoy 30 200 20 100 10 0 0 109 1010 Red brass 109 10 105 1 T Cycles to failure, N

Answer 1

Solution- Fatigue Due to cyclte or veverse cyelic Leoalry outme failuce may occoん rf total accumulated Stauin emexgy exteeds he tougmes Par 201y-T6 aluminum-12ympa. shes a) Yes, Br will fail faom fattgue. because So 3co 100 Number of cyeleas ploal in goaph is abrut 3 cyele (C) futiguc Shers(124 mpa