5-3. A shear force 
is applied to a wide-flange beam with the
cross section as shown. If the allowable shear stress on the web at A is
, determine the probability of failure of
the beam. Assume that 
and 
are
independent.
(Ans. 
)
5-3. A shear force is applied to a wide-flange beam with the
cross section as shown. If the allowable shear stress on the web at A is
, determine the probability of failure of
the beam. Assume that and are
independent.
(Ans. )