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A hypothetical engineering alloy is subjected to high temperature fatigue crack growth at a cyclic frequency of 5 Hz. The transition time from small scale creep to extensive creep, Eq. 16.21, under those testing conditions is 50 s. Comment on the validity of different fracture mechanics parameters to characterize the creep-fatigue fracture of the alloy.
Determine the work done and the amount of heat transfer for this process. Also, show the process on a P-v diagram.
You are assined the task of process design for a fixed-bed carbon adsorber system. You are given the following data: the inlet airstream flows at 5000 acfm (at 95 degrees F and 1 atm) and contains .2% n-pentane by volume
A river upstream of a brdige corssing is 3 meters deep and has an average velocity of 3 m/s. The bridge piers cause a constriction in the width of the flow by 12%.
A rectangular concrete beam of width b = 24 inches is limited by architectual considerations to a maximum total depth of h = 16 inches. it must carry a total factored load moment of Mu = 400 ft-kips.
Calculate the deflection of the column. You must choose the number of steel rods n, and the rod diameter. Exact location of roads does not need to be specified. You must also chose a thickness of the wrap.
Follow the derivation of the following equations for deflections of a beam, filling in all the required assumptions and steps in the derivations.EIv'' = M EIv''' =V EIv'''' = ? q where v is the deflection of the beam, E is Young's modulus
A suspended solids analysis is run on a sample. The tare mass of the crucible and filter is 55.3520 g. A sample of 260 mL is then filtered and the residue dried to constant mass at 103 degrees C.
A 2,000 lb uniformly-weighted crate is attached by light, inextensible cables to the truss. Simply determine the support reactions at A and E of the truss
A 2-ft diameter circular pipe has a Manning's n of 0.013 and a bed slope of 2.0 X 10^-3. What is the uniform flow rate in this pipe if it is completely full (Qf) in ft^3/s? What is the centerline uniform water depth (y0) in the channel if the flow, Q..
The following boundary conditions apply at x=0, ca = Keqcao and T=To and at x=L, (dco/dx)=0 and (dT/dx)=0. Determine the concentration and temperature profiles for this system.
An airplane with a Clark Y airfoil cross-section weighs 3500 lbs. The chord length is 6ft and the wingspan is 36 ft. Determine the: a) Minimum speed and power to take off
A steady-flow compressor is used to compress helium from 15 psia and 70oF at the inlet to 200 psia and 600oF at the outlet. The outlet area and velocity are 0.01 ft2 and 10 ft/s
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