The ratio of bending stresses inducedbeams, which have section modulus of100 mm3 and 300 mm3 respectively, is(A) 1:3(В) 3:1(C) 1:9(D) 9:1

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Answered: The ratio of bending stresses induced…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A beam has a bending moment of 3.5 kN-m applied to a section with a hollow circular cross-section of external diameter 3.9 cm and internal diameter 2 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 0.8 cm from the neutral axis (i) The moment of inertia = (in mm^4) ii) The radius of curvature is (in mm) (iii) The maximum bending stress is (in N/mm^2) iv) The bending stress at the point 0.8 cm from the neutral axis is (in N/mm^2)
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A beam has a bending moment of 3.5 kN-m applied to a section with a hollow circular cross-section of external diameter 3.6 cm and internal diameter 2.4 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 0.5 cm from the neutral axis (i) The moment of inertia = ii) The radius of curvature is (iii) The maximum bending stress is iv) The bending stress at the point 0.5 cm from the neutral axis is

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The ratio of bending stresses induced beams, which have section modulus of 100 mm3 and 300 mm3 respectively, is (А) 1:3 (В) 3:1 (C) 1:9 (D) 9:1