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Plot schematics of stress vs strain and stress vs. strain rate for (i) creep deformation, (ii) superplastic deformation, and (iii) high strain rate deformation typical of forging and extrusion. Desribe the microstructural and substructural changes that occur during these different types of deformation.
a steel pipe of 100-mm diameter is to support the loading shown. knowing that the stock of pipes available has
in boulder dam 2000 cubic feet per second of water flows through each of the pipes called penstocks that lead down to
two kg of saturated liquid water at 1 bar is compressed to 25 bar and 100degc in a water pump. determine the change in
1. What is a parting line or parting surface? 2. What is fluidity? 3. What type of shape modifications or allowances are generally incorporated into a casting pattern?
a machine component is made of 2024-t4 aluminum. the external loads produce highest operating principle stresses that
Determine the radius of the crank R and the speed n of a slider crank mechanism, used in a shaker table. It is required that the average speed of the table is 5 m/s, and the maximum absolute acceleration is 3000m/s^2. Assume ratio R/L=0.2
if ice homogeneously nucleates at -49.3oc calculate the critical radius given values of -3.1 times 108 jm3 and 25 times
a car engine produces 136 hp on the output shaft with a thermal efficiency of 30. the fuel it burns gives 35000 kjkg as
The boom OA carries a load P and is supported by two cables as shown. Knowing that the tension is 510 N in cable AB and 765 N in cable AC, determine the magnitude and direction of the resultant of the forces exerted at A by the two cables.
1 given amp find a r-134a at t 60oc and v 0.072 m3kg. find p and h.b ammonia at p 8 bar and v 0.005 m3kg. find
the lower yield point for an iron that has an average grain diameter of 5 x10-2 mm is 135 mpa 19500 psi. at a grain
If the bar is subjected to centric forces of magnitude P = 30 kN and knowing that EA = 70 GPa and EB = 105 GPa, determine the normal stress (a) in the aluminum layers, (b) in the brass layer.
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