The three cross-sections shown in Figure A12 have the same cross-sectiona area and are subjected to the same bending moment about their horizontal axis of symmetry. Section (a) is a square section. Sections (b) and (c) are composed of two rectangular sections that are placed loosely next to each other. If σå, σ and are their respective maximum bending stresses on the three sections, which one of the following relations is correct? 2a 2a 2a a a 2a (a) (b) а) ба<оо сос b) σa=0₂ < oc c) a< 0b = 0c d) a = b = c Figure A12 (c) Toro a a

The three cross-sections shown in Figure A12 have the same cross-sectiona area and are subjected to the same bending moment about their horizontal axis of symmetry. Section (a) is a square section. Sections (b) and (c) are composed of two rectangular sections that are placed loosely next to each other. If σå, σ and are their respective maximum bending stresses on the three sections, which one of the following relations is correct? 2a 2a 2a a a 2a (a) (b) а) ба<оо сос b) σa=0₂ < oc c) a< 0b = 0c d) a = b = c Figure A12 (c) Toro a a

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 9.13P: Figure (a) shows the cross section of a column that uses a structural shape known as W867...

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