GATE CE 2020 Set 2 — Question 16
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Structural Engineering → Torsion, Stress Transformation & Columns → Mohr's Circle for Stress
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Question
The state of stress represented by Mohr's circle shown in the figure is
Correct answer
(D) pure shear
Solution
In the given Mohr's circle, the center is at the origin . For a circle centered at the origin, the average normal stress is zero: . This state of stress, where principal stresses are equal in magnitude but opposite in sign, represents pure shear. On a plane at to the principal planes, the normal stress is zero and the shear stress is maximum (equal to the radius of the circle).
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