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Atomic Radius

A small eleme...

Question

A small element at the critical section of a component in biaxial state of stress with the two principal stresses being 360 MPa and 140 MPa. The maximum working stress according to distortion energy theory is

A

110 MPa

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B

220 MPa

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C

330 MPa

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D

314 MPa

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Solution

The correct option is D 314 MPa
According to distortion energy theory
$τ = \sqrt{σ_{1}^{2} + σ_{2}^{2} - σ_{1} σ_{2}} = 314 M P a$

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