Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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- Tutorial questions on shear stresses in beams subjected to non-uniform bending. Question One A hollow aluminum box beam has the square cross section shown in the figure. Calculate the maximum and minimum shear stresses Tmax and Tmin in the webs of the beam due to a shear force V = 125 kN 25 mm -300 mm- 25 mm Question Two The T-beam shown in the figure has cross sectional dimensions as follows: b = 210 mm, t= 16 mm, h = 300 and h₁ = 280. The beam is subjected to a shear force, V = 68 kN. Determine the maximum shear stress Tmax in the web of the beam. hi h C Iarrow_forwardH.W.3: The composite beam shown in the Figure below is formed of a wood beam and a steel reinforcing plate. The beam is subjected to a positive bending moment M = 60 kips.in. Using the transformed-section method, calculate the largest tensile and compressive stresses in the wood (material 1) and the maximum and minimum tensile stresses in the steel (material 2) if E, = 1500 ksi and E, = 30,000 ksi. A hi 6 in. Z- C |B 4 in. 0.5 inarrow_forwardA cast iron pulley transmits 20 kW at 300 r.p.m. The diameter of the pulley is 550 mm and has four straight arms of elliptical cross-section in which the major axis is twice the minor axis. Find the dimensions of the arm, if the allowable bending stress is 15 MPa. p 5:16 /arrow_forward
- Find the maximum transverse shear stress value. Find the maximum bending stress σb Find the maximum normal stress and the maximum shear stress developed in the shaftarrow_forwardA beam has a bending moment of 3.5 kN-m applied to a section with a hollow circular cross-section of external diameter 3 cm and internal diameter 2.3 cm . The modulus of elasticity for the material is 210 x 109 N/m2. Calculate the radius of curvature and maximum bending stress. Also, calculate the stress at the point at 0.6 cm from the neutral axis (i) The moment of inertia in (mm^4)= ii) The radius of curvature in (mm) = (iii) The maximum bending stress in (N/mm^2)= iv) The bending stress at the point 0.6 cm from the neutral axis in (N/mm^2)=arrow_forward5.5-13 Determine the maximum tensile stress o, (due to pure bending about a horizontal axis through C by positive bending moments M) for beams having cross sections as follows (see figure). (a) A semicircle of diameter d (b) An isosceles trapezoid with bases bị = b and bɔ = 4b/3, and altitude h (c) A circular sector with a = 1/3 and r = d/2 C C a a (a) (b) PROB. 5.5-13arrow_forward
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