QUESTION 2
The state of plane stresses at a point in a member is shown on the element in Figure Q5
i.
Sketch a Mohr's circle for the plane stresses
ii.
Calculate the principal stresses, principal plane, maximum shearing stress and average
normal stress
iii.
If the element is rotated 45° counterclockwise with respect to x-axis, calculate the
corresponding normal, $\sigma_x$, $\sigma_y$ and shearing stresses, $\tau_{xy}$