Engineering, 21.11.2019 22:31 skittlesarebae6035
Compute the longitudinal tensile strength of an aligned glass fiber–epoxy matrix composite in which the average fiberdiameter and length are 0.015 mm (5.9×10–4in.) and 2.0 mm (0.08 respectively, and the volume fraction offibers is 0.25. assume that (1) the fiber–matrix bond strength is 100 mpa (14,500 psi), (2) the fracture strength of thefibers is 3500 mpa (5×105psi), and (3) the matrix stress at composite failure is 5.5 mpa (800 ps
Answers: 1
Engineering, 04.07.2019 18:10
The higher the astm grain-size number, the coarser the grain is. a)-true b)-false
Answers: 3
Engineering, 04.07.2019 18:10
Compute the pressure drop of 30°c air flowing with a mean velocity of 8 m/s in a circular sheet-metal duct 300 mm in diameter and 15 m long. use a friction factor, f 0.02, and pair = 1.1644 kg/m a. 37.26 pa b. 25.27 pa n c. 29.34 pa d. 30.52 pa
Answers: 1
Engineering, 04.07.2019 18:10
Awall of 0.5m thickness is to be constructed from a material which has average thermal conductivity of 1.4 w/mk. the wall is to be insulated with a material having an average thermal conductivity of 0.35 w/mk so that heat loss per square meter shall not exceed 1450 w. assume inner wall surface temperature of 1200°c and outer surface temperature of the insulation to be 15°c. calculate the thickness of insulation required.
Answers: 3
Engineering, 04.07.2019 18:20
Aheavily insulated piston-cylinder device contains 0.02 m3 of steam at 300 kpa and 200 °c. 1.2 mpa. d this process. team is now compressed in a reversible manner to a pressure of etermine the entropy change and the work done on the steam during this process
Answers: 1
Compute the longitudinal tensile strength of an aligned glass fiber–epoxy matrix composite in which...
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