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It has been argued that the growth of internal voids in a material while it is being deformed is given by dr= f (σ H)dε, where r is the radius of the void and f (σ H) is a function of the hydrostatic stress. Explain, using this hypothesis, why ductile fracture occurs at higher effective strains in torsion than in tension.
Use a suitable method to predict the racS,T variation along these plates when a= e= 0.1, 0.5, and 0.8 and emissions and reflections are diffuse.
The open-ended polyvinyl chloride pipe has an inner diameter of 4 in. and thickness of 0.2 in. It carries flowing water at 57psi pressure. If the flow of water within the pipe is stopped due to the closing of a valve, determine the state of stress in..
you are swinging your younger sister in a circle of radius .9m. if her mass is 24kg and you arrange it so she makes one
A 1.2-lb metal bar initially at 2100oR is removed from an oven and quenched by immersing it in a closed tank containing 28 lb of water initially at 620oR. Each substance can be modeled as incompressible.
consider a 210mw steam power plant that operates on a simple rankine cycle. steam enters the turbine at 10mpa and 500oc
Consider an adiabatic mixing chamber operating at steady state into which steam enters with quality of 0.9. Water enters through a separate inlet at 300C. At the exit the temperature is 1500C and mass flow rate is 2 kg/s. The pressure in the mixing c..
a rigid tank has a volume of 60 liters and initially contains a two-phase liquid-vapor mixture of h2o at a pressure of
a wall is composed of a 12-cm-thick layer of material a and a 20-cm-thick layer of material b. the temperature of the
steam at 1.0mpa and 300c with a mass flow rate of 10kgs enters an insulated turbine operating at steady state and exits
derive eulers equations of motions stating all your assumptions. a write down the equation in vector form and explain
0.1 kg of propane is contained within a piston-cylinder assembly at 0.2 mp initially with a specific internal energy of
Using the ideal gas model with specific heat ratio, k = 1.4, and ignoring potential energy effects, determine (a) the exit velocity, in m/s, and (b) the rate of heat transfer, in kJ per kg of gas flowing through the nozzle.
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