Engineering, 20.01.2020 23:31 yungkxng57
Consider a sample of beams with elliptical cross section. the semi-major axis a and semi-minor axis b are measured and found to have means a¯ and ¯b and standard deviations sa = 0.02¯a and sb = 0.03¯b, respectively. compute the uncertainty in the corresponding beam cross-sectional area a, cross-section perimeter p , and moment of inertia i. that is, compute ua, up , and ui . assume the uncertainty of each term is equal to the standard deviation, i. e., ua = sa and ub = sb. to the extent possible, also report the relative uncertainties ua/a, up /p , and ui/i, simplified as much as possible.
Answers: 2
Engineering, 04.07.2019 18:10
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Engineering, 04.07.2019 18:10
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Afoot bridge is made as a simple deck, 4 m long, with a cross section 2 m (wide) and 20 cm thick, and made of wood. the deck is supported at the two ends. the maximum load allowable on the bridge is 10 tons, provided it is uniformly distributed on the deck. to sense this load, a strain gauge is placed at the center of the bridge and its resistance is monitored. if the sensor has a nominal resistance of 350 s2 and a gauge factor of 3.6, what is the reading of the strain gauge at maximum load? the modulus of elasticity for the wood used in the construction is 10 gpa.
Answers: 2
Consider a sample of beams with elliptical cross section. the semi-major axis a and semi-minor axis...
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