Multiple choice

A machine element is subjected to the following bi-axial state of stress: $\sigma_y=20$ MPa; $\tau_{xy}=40$ MPa If the shear strength of the material is 100 MPa, the factor of safety as per Tresca’s maximum shear stress theory is

  1. 1.0

  2. 2.0

  3. 2.5

  4. 3.3
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

$= \frac{100}{50}=2\\ \text{So factor of safety according to Tresca's maximum shear stress theory is 2.}$

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