Engineering, 10.09.2019 21:30 lorenialopez1234
1. a steel bar of circular section is subjected to uniaxial tension of load p. the original dimensions are given as diameter d0 and length 0 l . the reduction in diameter as a function of the loading p is approximated as 1 3 0 0 1 p d d p = − , and the extension of the bar is given as 1 3 0 0 1 p l l p = + when 0 p p = 0.05 , compute the ratio of true stress vs. engineering stress, i. e., true eng and the true strain ( ) true 2. textbook problem 2.6a, b,c (see scanned copy)
Answers: 1
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Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.
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Condition monitoring is a major component of. (clo4) a)- predictive maintenance. b)-preventive maintenance c)-proactive maintenance d)-reactive maintenance.
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An engine runs on the ideal diesel cycle. the cycle has a compression ratio of 20 and a cutoff ratio of 2. the highest temperature in the cycle is 1200 k. if the heat into the system is 300 kj/kg of working fluid and using variable specific heats determine the work produced per mass of working fluid
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Engineering, 04.07.2019 19:10
10 kg of co2 is initially contained at 400 kpa and 300 k. the gas constant for carbon dioxide is 189 j/lkg k) and has a specific heat ratio, k, of 1.289. isentropic expansion then occurs until the pressure is 200 kpa. a) determine the initial volume of co2 in m. b) determine the final temperature in k. c) determine the work done by the system during the expansion kl.
Answers: 2
1. a steel bar of circular section is subjected to uniaxial tension of load p. the original dimensio...
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