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Question

# According to maximum shear stress failure theory, yielding occurs in the material when

A
max. shear stress = yield stress
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B
max. shear stress = 2 times yield stress
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C
max. shear stress = 1/2 of yield stress
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D
max. shear stress = 2 times yield stress
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Solution

## The correct option is C max. shear stress = 1/2 of yield stressAccording to maximum shear stress failure theory, for no failure maximum shear stress developed should be less than or equal to maximum shear stress at yield point in uniaxial loading. τmax≤σy2 ⇒ Maximum shear stress = 1/2 of yield stress.

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