The structure ABCD is made of 2012-T6 Aluminum and has orques applied at end A and at C.
a) Calculate the shear stress at Point E. Point E lies on the outer edge of secion CD.
b) Calculate the shear stress at point F. Point F lies on the inner edge of section CD.
c) Draw the state of shear stress on a volume element at point F.
d) Calculate the angle of twist at end A.