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1. What are the advantages of using ceramic-matrix composites?
2. What is a laminar composite?
3. A microlaminate, Arall, is produced using 5 sheets of 0.4-mm-thick aluminum and 4 sheets of 0.2-mm-thick epoxy reinforced with unidirectionally aligned KevlarTM fibers. The volume fraction of KevlarTM fibers in these intermediate sheets is 55%. Calculate the modulus of elasticity of the microlaminate parallel and perpendicular to the unidirectionally aligned KevlarTM fibers. What are the principle advantages of the Arall material compared with those of unreinforced aluminum?
James Dyson is the designer of one of the best selling types of vacuum cleaner. Find out how the design was triggered, the design methods he used and why the design was considered to be innovative.
A ford ranger with a mass of 2410 kg is traveling at a velocity of 65 mph down a mount ion road in Colorado. The brakes fail and the driver elects to use a "run away" truck tramp to stop the pickup. What distance in feet will it travel if the ramp ha..
Heat is transferred steadily through a 0.2-m thick, 8m x 2 m wall at a rate of 2.6 kW. The inner and outer surface temperatures of the wall are 15 °C and 5 °C respectively. Find the average thermal conductivity of the wall.
A vertically mounted piston-cylinder device contains 1.5 kg of water and is being heated over a coal burning stove. During the process, 75 kJ of heat is transferred to the water and heat losses from the side walls amount to 9 kJ.
1. For the isentropic flow of an ideal gas with constant specific heat ratio k, the ratio of the temperature T* to the stagnation temperature To is T*/To 5 2/(k 1 1). Develop this relationship.
How does aggregate planning differ from the master production scheduling?
An open pan 210 mm in diameter and 75 mm deep contains water at 25?C and is exposed to dry atmospheric air. Calculate the diffusion coefficient of water in air. Take the rate of diffusion of water vapour is 8.52 x 10-4 kg/h.
a design specification requires that a 1008 pound vehicle be able to climb a 38 degree incline at 43 mph. what is the
Each turbine stage isentropic efficiency of 85% FWH is open T-S diagram for cycle? What is thermal efficiency and the moisture content of the steam leaving the low-pressure turbine?
Choose the z-axis to lie in direction of B and let the plane containing E and B be the yz-plane.
A steel tube [k = 15 W/(m.°C)] of outside diameter 7.6 cm and thickness 1.3 cm is covered with an insulation material [k = 0.2 W/(m.°C)] of thickness 2 cm. A hot gas at 320°C with a heat transfer coefficient of 200 W/(m2.°C) flows inside the tube. Th..
A hydraulic cylinder has a piston diameter of 2.2 inches, a fluid pressure of 1100 psi, a flow rate of 132 cubic inches per minute, and a stroke of 10.5 inches. Find the force and the velocity generated by the piston.
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