b) A simply supported beam has a rectangular cross-section with a second moment of area (I) of 11.50 x 106 mm² about its centroidal x-axis passing through (d/2). If the depth (d) of the cross-section is 180 mm, determine the breadth dimension (b) of the beam section; and calculate the maximum bending stress (σmax) about the centroidal x-axis when the beam is subjected to a bending moment of 25,000 Nm. Give the dimension b in millimetres (mm) and σ max in N/mm² both to 2 decimal places. Assume the section is solid where the material is homogeneous and of uniform thickness. [10 marks]

b) A simply supported beam has a rectangular cross-section with a second moment of area (I) of 11.50 x 106 mm² about its centroidal x-axis passing through (d/2). If the depth (d) of the cross-section is 180 mm, determine the breadth dimension (b) of the beam section; and calculate the maximum bending stress (σmax) about the centroidal x-axis when the beam is subjected to a bending moment of 25,000 Nm. Give the dimension b in millimetres (mm) and σ max in N/mm² both to 2 decimal places. Assume the section is solid where the material is homogeneous and of uniform thickness. [10 marks]

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter9: Moments And Products Of Inertia Of Areas

Section: Chapter Questions

Problem 9.16P: Figure (a) shows the cross-sectional dimensions for the structural steel section known as C1020...

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