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An element of aluminum in triaxial stress (see figure) is subjected to stresses σx= 5200 psi (tension), σy= -4750 psi (compression), and σz= - 3090 psi (compression). It is also known that the normal strains in the x and y directions are x= 713.8 × 10-6 (elongation) and y = - 502.3 × 10-6 (shortening). What is the bulk modulus K for the aluminum?
a steam turbine receives steam as a dry satured vapor at 7.0 mpa and expands adiabatically to atmospheric pressure 100
Consider the gas carburizing of a gear of 1020 steel at 927oC. Calculate the carbon content at 0.5mm beneath the surface of the gear at 5hr carburizing time. Assume the carbon content at the surface is 0.90% and that the steel has a nominal carbon co..
calculate the radius of an silver atom in cm given that ag has an fcc crystal structure a density of 10.5 gcm3 and an
Assume that the controller should provide a phase margin of 60° at fc, that the feedback sensor has a gain of kFB = 0.2 and the PWM chip uses a peak ramp voltage of 1.8V. Following the steps outlined in section 4.4 of the Mohan textbook, calculate..
1 water vapor at 6 mpa 6008c enters a turbine operating at steady state and expands to 10 kpa. the mass flow rate is 2
If we want to determine the number of values of x that are greater than zero we can use code similar to the following x0=x ./abs(x); % converts the array elements to ±1
A concrete pile is 20 m long and has a cross section of 0.46 m 3 0.46 m. The pile is embedded in a sand having g 5 17 kN/m3 and f9 5 388.
Calculate the film thickness at the trailing edge and overall heat transfer coefficient
consider oxidation of a metal plate half-thickness x0 0.02m. after 800hours 2.88e6 seconds at 900 c the oxide layer
consider a 20-l evacuated rigid bottle that is surrounded by the atmosphere at 100 kpa and 27 celsius. a valve at the
a ship channel has a depth of 16 m and an upper width of 16 m. the sides of the channel are curved such that the width
air at 1.0 atmosphere pressure and 77 0c enters a 5.0 mm i.d. tube with a bulk average velocity of 2.5 ms. the velocity
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