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1. The stresses in the global axes of a 30° ply are given as σx = 4 MPa, σy = 2 MPa, and τxy = -3 MPa. Find the stresses in the local axes. Are the stresses in the local axes independent of elastic moduli? Why or why not?
2. The strains in the global axes of a 30° ply are given as εx = 4 μin./ in., εy = 2 μin./in., and γxy = -3 μin./in. Find the strains in the local axes. Are the strains independent of material properties? Why or why not?
consider an r-134a compressor on a refrigeration system. if the refrigerant enters as saturated vapor at 200 kpa 0.03
Give the advantages and drawbacks of metal matrix composites over polymer matrix composites.
a cylindrical storage tank with dimensions of 15 m height and 15 m inside diameter is used to store oil having a
carbon dioxide co gas initially at t1 530 r p1 15 lbfin2 and v1 1 ft3 is compressed in a piston-cylinder assembly.
A piston-cylinder assembly undergoes a cycle consisting of the following three processes: Compression with constant internal energy. Constant-pressure expansion with W_3-1=12.5 kJ
Compute and plot the tube surface temperature as a function of heat flux for 0.25 qs"/q"max 0.90. On the same graph, plot the corresponding num- ber of tubes needed to provide the prescribed vapor production rate.
2-kg of saturated liquid r-134a with an initial temperature of -10 c is contained in a well-insulated weighted post
a plate 50 mm wide and 15 mm thick is loaded in tension. the plate is made from steel with yield strength of 1500 mpa
helium gas expands in an adiabatic turbine from 2 mpa and 750degc to 0.18 mpa at a rate of 1.5 kgs. assuming constant
A 1982 U.S. Department of Energy article (FS#204) states that a leak of one drip of hot water per second can cost $1.00 per month. Making reasonable assumptions about the drop size and the unit cost of energy, determine if this claim is reasonable. S..
Find the horizontal and vertical components of the reactions at A and D when the 800-N horizontal force is applied to the frame. The bending rigidity is EI for members AB and BC, and 2EI for member CD. Consider only deformation due to bending.
Organize the software interface into a device driver, and write a main program that outputs temperature to the SCI channel.
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