Question: ( 2 5 % ) A beam with the square cross - section oriented as shown in the figure is bent around z axis. Find

(25%) A beam with the square cross-section oriented as shown in the figure is bent around z axis. Find
the value of so the maximum reduction of maximum stress will occur in the beam by cutting off the corners
shown shaded. How much is the bending stress reduced?
( 2 5 % ) A beam with the square cross - section

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