Question

Problem 4.3 The composite shaft, consisting of aluminum, copper, and steel sections, is subjected to the loading shown. The cross-sectional areas of sections AB, BC and CD are A AB = 0.10 in?. ABC = 0.14 in?, and Acp = 0.06 in?, respectively. The modulus of elasticity for each section are shown in the figure. Neglect the size of the collars at B and C. (Figure 1) Figure 1 of 1 Aluminum El = 10(10) ksi Copper E = 18(10) ksi Steel E = 29(109) ksi 3.50 kip 1.75 kip 2.00 kip 1.50 kip D BL 15.50 kip -12 in 1.75 kip -16 in 18 in

Answer 1

for AAB = 0.10 10 in 2 014 in 2 ABC- ACD = 0.06 in 2 luso Kip 200 kip 3.5 kip 7 kip D B loin -12 in 4 loin ما در Skip 2000 Kip Iskip Tak folir 2.0 okip Icin D А lain B 121n c C porta Hormal Stressin AB CAB), 2.00 FAB AAB 010 TAB 200 ksi Part B -5 Hormal stron iú BC Foc) = FBC ABC 0:14 Увс - - 35.714 ksi - part @ TCD- For -1.50 Аер 006 ср = -25 ksi

Port D SAID = SAB + Sibe & Scio FABIAN + FBcloc t Foneco Aco Eco AAB EAB A Bc Ebe 2 X10 5x12 1.50x 16 alus 0.10 X 10X10 loxio 3 0.6ex 10X102 0.06% 2strow SAIN 3 cx103 -3 23 809 5X10 -3 13.79 31 X10 SAID -0.0016 in Answer