engineering recuitment DVC Junior Engineer Mock Test 2024 Strength of Materials Principal Stress or Strain Principle Stress
In the given figure, σ1 and σ2 are the maximum and minimum principal stresses. In order that the resultant stress on the plane AB is \(\sqrt {{{\left( {\frac{{{\sigma _1} + {\sigma _2}}}{2}} \right)}^2} + {{\left( {\frac{{{\sigma _1} - {\sigma _2}}}{2}} \right)}^2}} \), the value of θ should be -
1
30°
2
60°
3
75°
4
45°