A hollow, metal circular pipe ABC (see figure) supports a load P, = 16.6 kips acting at the top. P1 A dAB tAB P2 В Cap plate dBc tBC A second load P, = 22 kips is uniformly distributed around the cap plate at B. The diameters and thicknesses of the upper and lower parts of the pipe are das = 1.75 in., tag = 0.5 in., dec = 2.40 in., and tec = 0.375 in., respectively. The modulus of elasticity is 10,000 ksi. When both loads are fully applied, the wall thickness of pipe segment BC increases by 200 x 10-6 in. Assume the material behaves linearly elastically. (a) Find the increase in the inner diameter of pipe segment BC (in inches). in. (b) Find Poisson's ratio for the metal. (c) Find the increase in the wall thickness of pipe segment AB (in inches). Find the increase in the inner diameter of segment AB (in inches).-

3. A threaded rod and nut arrangement are guided with two washers, upper and lower washers tightened into a base plate. Considering that the base plate carries a load of 120 kN including its self-weight which is distributed equally: a. Determine the stress on the lower washers before the buts are tightened. b. Determine the stress int the upper washer when the nuts are tightened so as to produce a tension of 5kN on the bolt. Determine the stress int the lower washer when the nuts are tightened so as to produce a tension of 5kN on the bolt. c. 44 mm Upper washer Base plate Lower washer 20 mm 22 mm 50 mm

A hollow steel [E = 30,000 ksi] tube (1) with an outside diameter of 3.500 in. and a wall thickness of 0.500 in. is fastened to a solid aluminum [E = 10,000 ksi] rod (2) that has a 2.000-in.-diameter and a solid 1.375-in.-diameter aluminum rod (3). The bar is loaded as shown. Assume L1= 55 in., L2= 40 in., L3 = 25 in., R = 31 kips, Q = 11 kips, and P = 27 kips. Determine (a) the change in length of steel tube (1). (b) the deflection of joint D with respect to the fixed support at A. (c) the maximum normal stress in the entire axial assembly. R A B R L1 L2 L3 Answers: (a) 81 i in. in. An (9) (c) Omax i ksi

3) will upvote anyone who will answer