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A body with a plane stress field has material properties E, ν and has the following displacement fieldu(x,y) = a(x^3) - bx(y^2) v(x,y) = c(x^2)y - d(y^3)where a, b, c and d are constants. Determine the following:
(a) σx, σy and τxy as functions of x and y.(b) Is the displacement field compatible?
The formula for the coefficient of performance 'COP' for air standard refrigeration cycle when we use cold air properties is not given in the text. Derive the expression for COP as function of the compression ratio similar to how the ideal Brayton..
Plot the lift and drag forces exerted on an airfoil as a function of velocity. Use velocity values going from 0 to 45 m/s on a log-linear plot (log-scale on the y axis).
Determine the factor of safety against net section yield in the presence of the crack and determine the factor of safety against brittle fracture for the same conditions.
what would be the formula to find out weld pressure adjustments when atm inside the tube is changed?
A small hydroelectric power plant produces electrical power at a rate of 30 kW. The plant utilizes a stream of water that drops 40 m from a lake to the turbine and flows at a rate of 100 kg/s. What is the efficiency of the turbine-generator?
Determine the magnitude of the horizontal and vertical components of the force of the water on the gate.
Kinetics of Particles : Newton's Second Law, Determine the maximum theoretical speed that may be achieved over a distance of 50 m by a car starting from rest
Block B of the mechanism is confined to move within the slot member CD. If AB is rotating at a constant rate of AB = 3rad/s, determine the angular velocity and angular acceleration of member CD at the instant shown.
Determine the largest allowable square cross section of a steel shaft of length 6 m if the maximum shearing stress is not to exceed 135 MPa
Find the compression ratio, cutoff ratio, the thermal efficiency, the mean effective pressure, and the P -v and T-s diagrams clearly showing all corners.
Strategy formulation presupposes a set of objectives and goals.
Komodo dragons are the largest lizards known to man. A 250-pound dragon can eat enough food to increase it body weight by 1/2. Which number sentence could be used to find w, the weight of a k0modo dragon after increasing it body weight by 1/2?
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