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Balsa wood has been used for many years as a model making material. However, light weight modern, alternatives are also available. One such material is depron foam. It is a form of polystyrene sheet. It is lightweight and does not absorb moisture making ideal for model aircraft. It is available in two colours - grey and white. It is also available in three thickness 2, 3 and 6mm. Depron is a polystyrene foam, popular as a material for the manufacture of fast food trays and packaging. It is much lighter than balsa wood and can be cut with a sharp blade, sawn with a fine.
toothed mod- elling saw or fretsaw with a very fine blade. It can be sanded and smoothed using the usual files and abrasive papers (eg. wet and dry paper). Heat can be used to shape it although great care should be taken. Glue guns can be used to join depron or zepron although solvent free glues can also be used effectively. Using Figure 1.9 in the text-book, develop a system of equations and solution for free deflection of a morphing wing in the d33 operating mode. (Hint: Refer to class formulations on piezoelectric characterizations in Chapter 3). Show the constraint differences between 2, 3 and 6mm of Depron foam.
The maximum flow past a circular cylinder is 2 X the Up stream velocity. The max velocity occurs at the center line of the top of the cylinder.
Carbon fibre reinforced polymers (CFRP have been used extensively in aerospace applications due to their excellent strength to weight and stiffness to weight properties.
Steam @ 10 MPa, 600 degrees celcius enters the first-stage turbine of an ideal Rankine cycle with reheat. The steam leaving the reheat section of the steam generator is @ 500 degrees celcius
What is the minimum energy in the conduction band, and where can it be found in the Brillouin zone?
A steel cylinder with an internal radius of 50mm is designed to carry a maximum stress of 400 MPs. It is subjected to an internal pressure of 80 MPs.(i) Determine the required wall thickness.
Coefficient Reaction, The removal efficiency of a reactor tank is 73-percent and its residence time is 28.5s
Calculate the magnitude of the moment about the base point O of the 600 N force and calculate and draw the shear force and bending moment diagram for the cantilever beam
Find the needed length of the heated section of the tube and find the temperature of the water when it exits the heated section of the tube.
Steady State Thermal analysis can be use to simulate and obtain results to support the design optimization / objectives
A steady flow air compressor compresses 50 lb/min from 14 psia and 80 degrees F to a discharge state at 45 psia and 300 degrees F. Heat departs from the air only via circulating water that enters the jacket at 75 degrees F and leaves at 95 degrees..
Estimate the Schmid Factor, which is used to convert the CRSS into a critical tensile 'yield' stress. Use the measured angle between the slip trace and the sample long axis
Determine Fourier Number, Compare two identical steel spheres, except the first has a two inch diameter while the second sphere has a four inch diameter. The larger sphere will have a Fourier number approximately
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