Engineering, 12.08.2020 04:01 OKgoogle
An as-forged-condition solid 100- mm diameter circular shaft made of of AISI 1045 CD steel (use Shigley’s tables) is subjected to simultaneous in-phase cyclic axial load , bending moment , and torque , where min = −75 kN, max = 425 kN, min = −35 kN · m, max = 145 kN · m, min = −10 kN · m, and max = 15 kN · m. The shaft is operating at the room temperature, and a design reliability of 50% is desired. What is the safety factor against fatigue failure for infinite life? If infinite life is not achievable, estimate the number of cycles to failure. What is the safety factor against localized yielding?
Answers: 2
Engineering, 03.07.2019 14:10
If the thermal strain developed in polyimide film during deposition is given as 0.0044. assume room temperature is kept at 17.3 c, and thermal coefficient of expansion for the film and the substrate are 54 x 10^-6c^-1 and 3.3 x 10^-6c^-1respectively. calculate the deposition temperature.
Answers: 3
Engineering, 04.07.2019 18:20
Athin walled concentric tube exchanger is used to cool engine oil from 160°c to 60°c with water that is available at 25°c acting as a coolant. the oil and water flow rates are each at 2 kg/s, and the diameter of the inner tube is 0.5 m and the corresponding value of the overall heat transfer coefficient is 250 w/m2. oc. how long must the heat exchanger be to accomplish the desired cooling? cpwater=4.187 kj/kg-candcpengine el=2.035 kj/kg·°c, oil . 120]
Answers: 1
Engineering, 06.07.2019 03:10
Oxygen at 300 kpa and 400 k is in a closed system with an initial volume of 0.1 m3. is now compressed in a polytropic process, with exponent of n 1.2, to a temperature of 500 k. calculate: a) the boundary work done during the compression, in kj b) the heat transfer during the compression, in kj
Answers: 3
Engineering, 06.07.2019 03:20
Write a technical essay (maximum two pages) about stress concentration. and paste from the textbook. instead, read updated material about this phenomenon and provide a technical evaluation of the different techniques to avoid/reduce such phenomenon. consider in your analysis cutting-edge computational techniques such as fea to study and analyze stress concentrations.
Answers: 2
An as-forged-condition solid 100- mm diameter circular shaft made of of AISI 1045 CD steel (use Shig...
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