Chapter 2
Q. 2.10
Solve Example 2.9 using Mohr’s circle.
Step-by-Step
Verified Solution
Plot principal stress points (160, 0) and (40, 0) and draw a circle through its center C as shown in Fig. 2.17. The resultant is given by, tangent OD = 80 MPa. Its inclination with its normal = \phi and with major principal stress 160 MPa = \theta , can be read from Fig. 2.17. Angle of inclination of resultant stress \sigma _r with normal stress \sigma _x,
\sin \phi=\frac{D C}{O C}=\frac{60}{100}=0.6 \phi=36.874Inclination with major principal plane
\theta=\frac{1}{2}\left(90^{\circ}+\phi\right)=63.435^{\circ}