Question

The radius of Mohr's circle of stress of a strained element is 20 $N/m{m}^2$ and minor principal tensile stress is 10 $N/m{m}^2$. The major principal stress is

• A. 30 $N/m{m}^2$
• B. 50 $N/m{m}^2$
• C. 60 $N/m{m}^2$
• D. 100 $N/m{m}^2$

Answer 1

The correct option is B 50 $N/m{m}^2$

Minor principal stress = C - r = 10
Centre of circle (C) = 10 + 20 = 30 $N/m{m}^2$
Major principal stress = C + r = 30 + 20
$=50N/m{m}^2$