Engineering, 13.12.2019 06:31 mileto1798
(a) a single crystal of a metal that has the bcc crystal structure is oriented such that a tensile stress is applied in the [010] direction. if the magnitude of this stress is 2.75 mpa, compute the resolved shear stress in the direction on each of the (110) and (101) planes. (b) on the basis of these resolved shear stress values, which slip system is more favorably oriented
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Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.
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Engineering, 04.07.2019 19:10
Apressure vessel with an r/t 20 cannot be treated as thin walled vessel. a)-trune b)- false
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To save energy, the air supply to a 2000 ft office has been shut off overnight and the room temperature has dropped to 40°f. in the morning, the thermostat is reset to 70°f and warm air at 120 f begins to flov in at 200ft'/min. the air is well mixed within the room, and an equal mass flow of air at room temperature (changing with time) is withdrawn through a return duct. the air pressure is nearly 1 atm everywhere. ignoring heat transfer with the surroundings and kinetic and potential energy effects, estimate how long it takes for the room temperature to reach 70°f. plot the room temperature as a function of time.
Answers: 1
(a) a single crystal of a metal that has the bcc crystal structure is oriented such that a tensile s...
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