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The composite shaft is made of a steel sleeve, which is bonded to a brass core. The outer diameters of the two parts are d1 = 40 mm for the brass core and d2 = 50 mm for the steel sleeve. The shear moduli of elasticity are Gb = 36 GPa for the brass and Gs = 80 GPa for the steel. Assuming that the allowable shear stresses in the brass and steel are fb = 48 MPa and fs = 80 MPa, respectively, determine the maximum permissible torque Tmax that may be applied to the shaft without any material failure. The torques are applied each at the end of the shaft opposite directions.
We know that the part has an intial crack of length 0.02 mm, and that the fracture toughness is 55 MPA(m)^1/2If the part is subject to cycle loading of 300 Mpa in tension and compression, calculate (assuming Y1.2, n = 3.4 and C = 2x10^-11 in units ..
Drawdown at an observation well 15m from the pumped well is 3.0 m and a drawdown at a second observation well 150 m away is 0.30 m. Find the hydraulic conductivity of the aquifer.
the water tempearture is 10 degree celusis. how fast must the paddle wheel rotate in that compartment to generate a G(velocity gradient) value 30 s-1
a line was measured five times, the readings were: 100.08, 100.51, 100.32, 100.16, 100.22. what is the error. What is the most probable length.
For a mixed liquor volatile suspended solids (MLVSS) of 1800 mg/L, what is the total return solids flow rate?
A cylindrical tank with inside diameter of 300mm and wall thickness of 5mm is subjected to an internal pressure of 2Mpa. The tensile stress in mpa in the wall of the tank is mostly near
if the mass of liquid to vapor in a mixture of saturated liquid and vapor water is 0.8, what is the quality of the mixture
A sightseeing tourist submarine is constructed. The portals along the side can be assumed to be essentially flat, vertical and 1 meter in diameter. Assume a specific weight of seawater of 10,000 N/m3.
A 500 L (132 gal) tank contains 255 mg/L 2,4,6-trichlorophenol dissolved in trichloroethylene (TCE). What is the 2,4,6-trichlorophenol concentration in ppm Assume the temperature of the system is 20 degrees C.
The hull of a boat has a volme of 150m and the total mass of the boat when empty is 8560kg. determine how much load this boat can carry without sinking in a lake.
how far back from the front axle would the center of gravity have to be to ensure that the maximum tractive effort developed for front- and rear- wheel-drive options is equal (assume that all other variables are unchanged)
a lagoon is 20 ft by 80 ft with a depth of 5.5 ft .Wastewater from households flow into the lagoon at 260 gal/day .How many days would it take to fill the lagoon
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