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Problem: The soil profile acting against the back of a retaining concrete wall is shown in the Fig. below. The ground surface behind the wall slops at an angle β=10° to the horizontal and carries a uniformly distributed load of 45 kPa. Assuming that Rankine's conditions apply:
Assume that the unit weight of the concrete is 24.5 kN/m3 and the design bearing resistance of the soil beneath the wall has been calculated to be 320 kPa. Ignore any passive resistance from the soil in front of the wall. Check the safety of the proposed design against by the traditional (gross pressure) method (assume coefficient of friction between base of wall and soil is equal to tan 35°)
for the stress element with sigmax 1400psi sigmay 600psi and shear 950 psi determine the average stress the maximum
in a 150 mw steam turbine unit operating on an enhanced rankine cycle steam is delivered from the boiler to the high
a circular specimen of mgo is loaded using a three-point bending mode. compute the minimum possible radius of the
Determine appropriate values for the ring inside diameter and the clamping force.
Determine the boundary layer thickness and the wall shear stress at the center and the trailing edge of the plate. Assume a laminar boundary layer.
an airplane flying at m0 0.8 under standard sea level conditions has instrumentation embedded at the stagnation point
Assume lift L = 1 cm. Satisfy the smoothness requirements at the transition points (boundaries), and the equality of displacements at the inflection points. Plot the displacement, velocity, and acceleration diagrams of the points on the knife-edge..
if the 50-kg kg crate starts from rest and achieves a velocity of v v 4ms ms ms 0when it travels a distance of 5 mm m
During this process, heat is transferred from a heat source at 200oC, such that when the valve is closed, the temperature inside the tank is 50oC. What is the heat transfer?
The member is 6 in. by 12 in. in cross section. Calculate the combined stress at each of the four corners (A, B, C, and D) and locate the line of zero stress.
a one dimensional wall of material kw10wmk is 50 mm thick with uniform heat generation qlsquolsquolsquo5106wm3. the
air at mass flow rate of 10 kgs at 1 atm 300 k point1 enters an adiabatic compressor and exists at 8 atm 600 k point 2.
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