Problem: The steel beam is constructed by welding three rectangular pieces into a complex cross sectional shape, as shown below. The beam is subjected to an internal vertical shear force V = 40 N and an internal bending moment M = +80 N-m. Note that the moment M acts about the horizontal neutral axis of the cross section (labeled NA). 20 mm (a) Determine the maximum tensile bending 10 mm stress. 20 mm 10 mm 10 mm 10 mm (b) Determine the maximum compressive bending stress. (c) Determine the maximum transverse shear stress. 10 mm. N- V (d) Determine the transverse shear stress in

Problem: The steel beam is constructed by welding three rectangular pieces into a complex cross sectional shape, as shown below. The beam is subjected to an internal vertical shear force V = 40 N and an internal bending moment M = +80 N-m. Note that the moment M acts about the horizontal neutral axis of the cross section (labeled NA). 20 mm (a) Determine the maximum tensile bending 10 mm stress. 20 mm 10 mm 10 mm 10 mm (b) Determine the maximum compressive bending stress. (c) Determine the maximum transverse shear stress. 10 mm. N- V (d) Determine the transverse shear stress in

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter6: Stresses In Beams (advanced Topics)

Section: Chapter Questions

Problem 6.5.7P: The cross section of a steel beam is constructed of a W 18 × 71 wide-flange section with a 6 in. ×...

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The cross section of a rectangular beam having a width b and height h is shown in part a of the figure. For reasons unknown to the beam designer, it is planned to add structural projections of width b/9 and height d/9 the top and bottom of the beam (see part b of the figure). For what values of d is the bending-moment capacity of the beam increased? For what values is it decreased?
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