Determine the normal stress in each bar if the diameter of member AB-20mm, AC=25mm, & CB-22mm. Set P-50KN. 1.5 m 2 m
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- 1-10. A bar of variable cross section, held on the left, is subjected to three forces, P =4 kN, P, = -2 KN, and P, = 3 kN, as shown in the figure. On two separate diagrams, plot the axial force and the axial stress along the length of the bar. Let A1, = 200 mm, A2, = 100mm², and A3, = 150 mm".solve for deformation in figure B. given V= 10-0 and area = 2.0in^2An electric power transmission pole is 12 m above ground level and embedded 2 m into the ground. The butt diameter is 450 mm and the tip diameter (the top of the pole) is 320 mm. The weight of the pole, cross arms, and wires is 33 kN. Assuming the pole transmits the load as a point load, find the change in vertical stress in kPa at 2 m depth. a. 17.8 b.393.9 c.63.0 d.3.9
- The copper pipe [G = 7,000 ksi] has an outside diameter of 3.875 in. and a wall thickness of 0.250 in. The pipe is subjected to a uniformly distributed torque of t = 80 lb-ft/ft along its entire length. Using a = 2.5 ft, b = 4.0 ft, and c = 8.5 ft, determine(a) the maximum shear stress in the pipe.(b) the rotation angle φC at the free end of the shaft.The steel shaft with two different diameters rotates at 4.2 Hz. The power supplied to gear C is 68 kW, of which 42 kW is removed by gear B. Find the maximum shear stress (in Pa) in the shaft if d = 58.1 mm, h = 60.6 mm, L = 3.9 m, M = 2.1 m, and G = 83.49 Gpa. Round off the final answer to two decimal placesf. What is the moment of inertia (I) about the neutral axis of the section? (in in^4) g. What is the first moment of an area (Q) about the neutral axis of the section? (in in^3) h. What is the maximum shearing stress (fv) of the beam? (in psi) i. What is the maximum flexural stress (fb) of the beam? (in psi)
- Determine support reaction at B . Given P=100 Kn L=10 mRefer to Figure P6.4. A strip load of q = 900 lb/ft2 is applied over a width B = 36 ft. Determine the increase in vertical stress at point A located z = 15 ft below the surface. Given: x = 27 ft. Figure P6.4For the shaft shown, a. Determine the maximum stress on the shaft and the maximum angle of twist of end D relative to end A. b. If the stress in every section must not exceed 25 MPa, what should be the uniform diameter of the shaft? dAB = 100mm, dbc = 80mm, dcd = 50mm G for the shaft is 80GPa. Consider clockwise torques as negative.
- The following beam is supported by three cables AD, BE, and CF. Cables AD and CF are made of steel, and cable BE is made of aluminum. The data is presented in the table. A force P of 125 kN is applied, and the temperature increases by 100°C. Determine: The stress in each cable. Answ: 25.09 MPa, 49.22 MPa. The vertical displacement of the beam. Answ: 1.99E-3 m.a horizontal single force P of 150 lb magnitude is applied to the end D of lever ABD. 1. what is the normal and shear stresses at point H having sides parallel to the x and y axes? 2. determine the principal planes and pricipal stress at the point Hknowing that P = 18 Kips, determine the maximum stress when r = 0.45 in and r = 0.70 in