The shear stress distribution for a rectangular section under the action of shear force S is shown below. The rectangular section is b×d. Select the correct shear stress distribution from the following :
A
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B
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C
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D
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Solution
The correct option is C In rectangular section, shear stress varies parabolically. Shear stress at top and bottom is zero and maximum value is at the neutral axis which is equal to 3/2 times average shear stress.