Question 4: A beam of the cross section shown is made of a steel that is assumed to be elastoplastic with E=29×106 psi and o; = 42 ksi. A bending couple is applied to the beam about the z axis, causing plastic zones 2 in. thick to develop at the top and bottom of the beam. After the couple has been removed, determine (a) the residual stress at y=2 in., (b) the points where the residual stress is zero, (c) the radius of curvature corresponding to the permanent deformation of the beam. 1 in. 2 in. 1 in. 1 in. 1 in. l in.

Question 4: A beam of the cross section shown is made of a steel that is assumed to be elastoplastic with E=29×106 psi and o; = 42 ksi. A bending couple is applied to the beam about the z axis, causing plastic zones 2 in. thick to develop at the top and bottom of the beam. After the couple has been removed, determine (a) the residual stress at y=2 in., (b) the points where the residual stress is zero, (c) the radius of curvature corresponding to the permanent deformation of the beam. 1 in. 2 in. 1 in. 1 in. 1 in. l in.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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