Engineering, 28.11.2019 21:31 becddjr
Ashaft is subjected to steady torsional stress τ=25 kpsi and alternating (fully reversed) bending stress σ=30 kpsi. the material is steel with sut=70 kpsi, sy=70 kpsi and se=35 kpsi that includes the modifying factors. a. calculate the static safety factor ηy for yield. b. calculate the fatigue safety factor ηf for infinite life using modified goodman criterion. c. calculate the fatigue safety factor ηf for infinite life using asme elliptic criterion.
Answers: 2
Engineering, 03.07.2019 15:10
Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.
Answers: 1
Engineering, 04.07.2019 08:10
Which of the following is an easy way to remember the modified “x” tire rotation? a. nondrive wheels straight, cross the drive wheels b. drive wheels straight, cross the nondrive wheels c. drive wheels crossed, nondrive wheels straight d. drive wheels crossed, nondrive wheels crossed
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Engineering, 04.07.2019 18:10
What difference(s) did you notice using a pneumatic circuit over hydraulic circuit.explain why the pneumatic piston stumbles when it hits an obstacle.
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Engineering, 04.07.2019 18:10
The higher the astm grain size number, the finer the gran is. a)-true b)-false
Answers: 2
Ashaft is subjected to steady torsional stress τ=25 kpsi and alternating (fully reversed) bending st...
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