Is it possible to obtain the maximum values of the
transverse shear stress and flexural stress without knowing the
location of the maximum shear and moment? Explain your answer.
The erosion rate of a streambank is calculated by the excess
shear stress equation: e=k(a-c) where e is the erosion rate in m/s,
k is the erodibility coefficient in m^3/ N s, a is the applied
shear stress (Pa) and c is the critical shear stress (Pa). The
applied shear stress is calculated using the equation a=den*g*d*s
where den is the density of water (1000 kg/m^3), g is the
acceleration due to gravity (9.8 m/s^2), d is the depth of...
(c) Draw a schematic graph of resolved shear stress versus shear
strain for a single crystal of a pure metal. Clearly label the
point of the critical resolved shear stress and the three
subsequent stages of dislocation behaviour. Describe these three
stages.
(d) Explain why the critical resolved shear stress is much lower
than the theoretical strength, based on the force required to break
atomic bonds within the structure.
How to size an I section under shear bending? Stress calculation
should be done at which points, why? Which of the parameters that
affect stress are more critical? What changes when the section is
L, rectangular, or U? What additional inspections should be made
for a safe design or what principles should be used for the check?
How to choose the section or point to be checked? Explain with
formulas, figures, and equations.