Oy =20 kN Txy E-25 kN Oy =20KN Ox =10kN 01 45 degree =-25 kN Oy =20 kN
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- The T section is shown in Figure below is the cross-section of a beam. The beam is subjected to a uniform distributed load = 4 kN/m. The N.A is located at 34.7 mm from the bottom and that IxA =10.64x106 mm. Determine (a) the maximum shearing suess (b) the shearing stress at 15 mm from the bottom face. Q2 %3D 20mm 4 kN/m 120mm A 34.7 mm 20mm lm 3m 1m 220mm TT2:37 6.00 KB/S A 2M 3M B Problem 2: A rigid block of negligible mass is supported by three symmetrically spaced rods as shown. Each copper rod has an area of 900mm2 and E=120GPA, and the allowable stress is 70MPa. The steel rod has an area of 1200mm2, E=200GPA and the allowable stress is 140MPA. Determine the largest load P which can be supported. Your answer Figure for Problem 2 STEEL 24OMM COPPER COPPER 16OMM 16OMM --9 MPa 7 MPa 5 MP 1. Draw the appropriate Mohr's circle. 2. Get from the circle oi and o2, Umax and its corresponding normal stress (Oevg). Show these points on the circle. 3. Show on the circle the angles 20p and 20s that correspond to the orientation of principal planes and the planes of maximum shearing. 4. Solve point (1c) above graphically using the circle ik. show that your graphical solution is giving the same results as obtained by the analytical equations in point (1c) above.
- 4. The uniform stone in the figure a has a mass of 500 kg and is held in the horizontal position using a wedge at B. If the coefficient of static friction is 0.3 at the surfaces of contact, determine the minimum force P needed to remove the wedge. Assume that the stone does not slip at A. В ► P C 7°7. Determine the horizontal force P that would keep the uniform 12-kg rectangular plate in the position shown. 0.4 m 0.3 mAn offset h must be introduced into a solid circular rod of diameter d. Knowing that the maximum stress after the offset is introduced must not exceed 6 times the stress in the rod when it is straight, determine the largest offset that can be used. P' 4 P' P The largest offset that can be used is h = d.
- 13. The velocity distribution over a plate is given by u= y-y in which u is the velocity in m/sec at a distance of y m above the plate. Determine the shear stress at y 0, 0.1 and 0.2 m. Take u = 6 poise. [Ans. 0.4, 0.028 and 0.159 N/m)The rectangular block of negligible weight is subjected to a vertical force of 40kN, which is applied to its corner. Determine the normal-stress distribution acting on a section through ABCD. 0.8m 0.4m B D 40KN C! Required information For the beam and loading shown, consider section n-n. It is given that P= 226 kN. P 50 mm 50 mm 150 mm n A B 50 mm 0.75 m 1.2 m 0.75 m 75 mm 75 mm 75 mm Determine the shearing stress at point b. The shearing stress at point bis MPа.
- The normal and shear stresses on a plane are 120 psi (C) and 25 psi respectively. On an orthogonal plane, the respective stresses are 40 psi (C) and 25 psi. Draw Mohr's circle and determine the angle between minor principal plane makes with the 120 psi stresses.Consider the element in with Txy = 30 MPa. 80 MPa Part A 01, 02 Determine the principal stresses. Enter your answers in megapascals to three significant figures separated by a comma. = T vec Submit VE ΑΣΦ | 41 Txy Request AnswerFor the section shown, if d = 200 mm, horizontal shear force = 100 kN to the right and torque = 15 kN.m clockwise, then the total shear stress at point B is …..... A B E 13.79 MPa downward O 13.79 MPa to the right O zero 9.55 MPa downward 9.55 MPa to the right O