A bending couple is applied to the bar indicated, causing
Chapter 4, Problem 4.89(choose chapter or problem)
A bending couple is applied to the bar indicated, causing plastic zones 3 in. thick to develop at the top and bottom of the bar. After the couple has been removed, determine (a) the residual stress at y = 4.5 in., (b) the points where the residual stress is zero, (c) the radius of curvature corresponding to the permanent deformation of the bar.
Beam of Prob. 4.75.
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