1
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SECTION B: Answer ALL questions. [10 marks]
2b)
A solid shaft has a radius
r
and is acted upon by the
forces and torque shown in
Figure 2. Determine in terms
of
r
, the normal and shear
stresses acting on the shaft at
Element
H,
the maximum
shear stress, average stresses,
principal stresses and
principal plane acting on
element
H
. [10 marks]
Note: Marks will be
awarded when using
Mohr circle only. No
marks will be awarded
when using
transformation equation
Figure 2
