Derive an expression for the shear stress at the pipe wall when
an incompressible fluid flows through a pipe under pressure. Use
dimensional analysis with the following significant parameters:
pipe diameter, flow velocity, viscosity and density of the
fluid.
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.
(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.
The allowable normal stress for member BC is σallow = 29 ksi and the allowable shear stress for the pins is τallow = 10 ksi.(Figure 1)FigurePart ADetermine the required thickness of member BC.Express your answer to three significant figures and include the appropriate units.t =Part BDetermine the required diameter of the pin at A.Express your answer to three significant figures and include the appropriate units.dA =Part CDetermine the required diameter of the pin at B.Express your answer to three significant figures and include the appropriate units.dB =
A ) Briefly explain the main characteristic of shear wall
structures in tall building.
Sketch as necessary. Provide examples as well.
Describe the difference of proportionate and non-proportionate
twisting structure.
B) Briefly explain the main characteristic of wall-frame structures
in tall building.
Sketch as necessary. Provide examples as well.
C) Describe the factors affecting the stability of tall building.
State the modes
involved in buckling of tall building