Q2. At a point in an elastic material under strain, the stresses on the three mutually perpendicular planes are as
follows:
A normal tensile stress of 60 N/mm^2
and shear stress of 40 N/mm2 on one plane and a normal tensile force of 40
N/mm^2
and a complimentary shear stress of 40 N/mm2 on another plane. Find the following using Mohr circle
only (take 5 N/mm^2 = 1 cm)
a. The principal stresses and principal planes.
b. The maximum shear stress and its plane.
c. The normal and shear stress on a plane inclined at an angle of 30O
to major principal plane.