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Maths questions full workings out please and engineering question explain in detail please
Question 1: A tensile load F is to be applied to a tie bar shown in figure. The tie bar is 50 mm diameter. The surface of the bar has defects resulting from the manufacturing process, these have a maximum depth of 1.5 mm and have a shape factor of 1.4.
If the fracture toughness of the material used is 120 MPa m-0.5, determine the maximum load which can be applied if brittle fracture is not to occur. Use a factor of safety of 3.
Question 2: Consider that we need to predict the fatigue life of the bracket shown in figure. If we are given that the following relationship applies for the bracket:
Da/dV = 4 x 10-12 (ΔK)3 where Δk is in MPa m1/2
and that the stress varies cyclically between 30 and 150 MPa, determine the number of cycles for a defect to grow from 1.5mm to 4 mm.
a .5 inch solid bar is to be tested for its strength by applying a torsional force until the bar completely brakes in
Determining Feasibility, At steady state, a new power cycle is claimed by its inventor to develop 6 horsepower for a heat addition rate of 400 Btu/min
An unsuited free diver can work in a pressure of up to 490KN/m^2 and a suited diver in pressure of up to 1815 KN/m^2. Calculate the maximum depths at which they might work in sea-water which has a specific gravity of 1.03.
a well-insulated rigid tank has a volume of 10ft3 water with a quality of 0.7 at 212of. the water is rapidly stirred
Refrigerant-134a is throttled from saturated liquid state at 7 bar to a pressure of 1.4 bar. Determine the temperature drop during this process and the final specific volume.
A heat pump system is being designed to maintain a temperature of 25 0C when it is 0 0C outside. Assuming the heat transfer from the walls and roof is 4,000 MJ, determine the minimum theoretical net work input required if the cold reservoir was a) th..
a 200 kg lander is approaching mars. assume a gravitational acceleration of 3.7 ms2. at the illustrated instant h 15 m
the automobile has a speed of 80 fts at point a and anacceleration a having a magnitude of 10fts2 acting in the
aan 8-inch pitch diameter steel gear 3 inches thick face width is pressed onto a 2 inch diameter steel shafte30000000
Create a (Matlab) program (not Excel!) which allows you to vary the geometric parameters (rb {bottom radius of ask; rt {top radius of ask; h { initial liquid height; A { hole area; N { number of discretization points).
Rhodium (Rh) has an atomic weight of 102.91 g/mol and atomic radius of 1.345 Å. Determine whether it has an FCC or BCC crystal structure, if its density is 12.41 g/cm3. What is its lattice constant? Explain your answers.
In this discussion activity, address the following in your primary, original posting: Explain the similarities and differences between a horizontally opposed and radial engine.
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