In a compression test, a steel test specimen (modulus of elasticity = 30 x 106lb/in2) has a starting height= 2.0 in and diameter = 1.5 in. the metal yields (0.2% offset) at a load = 140,000 lb. at a load of 260,000 lb, the height has been reduced to 1.6 in. determine (a)yield strength and (b) flow curve parameters (strength coefficient and strain-hardening exponent). assume that the cross-sectional area increases uniformly during the test.
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Physics, 22.06.2019 07:50
The ratio of lift to drag l/d for a wing or airfoil is an important aerodynamic parameter, indeed, it is a direct measure of the aerodynamic efficiency of the wing. if a wing is pitched through a range of angle of attack, l/d first increases, then goes through a maximum, and then decreases. consider an infinite wing with an naca 2412 airfoil. estimate the maximum value of l/d. assume that the reynolds number is 9x10^6.
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Physics, 23.06.2019 05:10
Uwill get answer it brainliest will be awarded for →calculate the pressure exerted by a body having a mass of 30kg over an area of contact 400cm2.also explain it for every step there should be
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In a compression test, a steel test specimen (modulus of elasticity = 30 x 106lb/in2) has a starting...
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