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Consider the thin-walled beam section illustrated in the figure below. The beam has a vertical load of V = 500 kN acting on one end and is rigidly supported at the other end as illustrated. In the figure below, dimensions are given in mm and the section centroid is 77.5 mm from the lower edge as illustrated. The second moment of area of the section about the centroidal axis illustrated is I = 834.85 × 106 mm4.
(a) Determine the shear stress at the four points in the beam, labelled (i), (ii), (iii) and (iv).(b) Sketch the distribution of shear stress across the horizontal and vertical portions of the beam section, noting the shape of the distributions and key values.(c) What are the values of the principal stresses on the neutral axis of this beam?(d) Show the principle stresses on the neutral axis on a correctly oriented element relative to the axis of the beam.
Ideal vapor-compression refrigeration cycle, An ideal vapor-compression refrigeration cycle, with ammonia as the working fluid, has an evaporator temperature of -20c and a condenser pressure of 12 bar
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A ball with a mass of 0.25 kg is thrown vertically upward with an initial velocity of 10 m/s. What is the velocity of the ball when it reaches the highest point?
Define dynamic viscosity, Determine the centroid, Pressure due to the height of liquid, Advantage of changing the liquid, Calculate the total moment about the hinge of the seal gate.
determine the designe power. An output speed of 175 RPMis specified. Determine: a) number of teeth on the small sprocket, b) number of teeth on the large sprocket, c) lubrication type required, d) the required length of chain (in inches) if the ce..
Determine the rate of heat loss from the molten salt per meter length of the pipe.
If the chest is completely filled with ice, calculate the time for the ice to completely melt. State your assumptions. The enthalpy of fusion for water is 330 kJ/kg.
Water flows though a 20mm diameter pipe at 3L/min and static pressure of 100mmHG. What is the wall stress of the pipe. The pipe is 1.5mm thick.
A 4 m diameter sphere is embedded in insulation. The sphere contains a liquid-ice mixture maintained at 0 deg C. The ambient temperature surrounding the insulation is 25 deg C.
In the idealized model attached shown, m = 15 kg, k = 135 N/m, and the viscous damping ratio is 0.15. Assume that an external harmonic force F(t) = 15 cos 4 t acts on the system with F0=15 N and forcing frequency of 4 rad/s.
A spur gear has 48 teeth with a diametral pitch of 8 and a pressure angle of 20 deg. The face width is 0.75 inches. If the gear is transmitting 25 HP at 250 rpm
A piston-cylinder device initially contains 50L of liquid water at 40 degrees C and 200kPa. Heat is transferred to the water at constant pressure until entire liquid is vaporized.
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