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A large plate contains a central crack of length 2 mm and is subjected to a cyclic stress normal to the crack which varies between 100 MPa and 300 MPa. Crack growth is governed by Paris' equation with C =-- 5 x 10-15 MN-4 m7/cycle and in -= 4. Calculate the crack length after 106 cycles.
the force exerted on the cue ball by the cue is horizontal. determine the value of h for which the ball rolls without
A 0.7-lb block rests on top of a 0.5-lb block supported by but not attached to a spring of constant 9 lb/ft. The upper block is suddenly removed. Determine (a) the Maximum velocity reached by the 0.5-lb block, (b) the maximum height reached by the..
I would expect somthing like the requirement to execute the equation, please explain each term in the equation with its engineering units.
the total pressure of air entering a single-stage centrifugal compressor is 1.013 bar and the total t is 288 k. the
Problem Statement Consider the landing gear shown below. Working in teprns of two, come up with a single optimized design for given operational conditions and design considerations
Is it possible to rotate turbine blades without any fluid means there is no requirement of water or air to rotate turbine blade.
Starting from the energy equation and using the one-dimensional heat conduction derivation as an example
What is the acceleration of the truck if the coupling at C suddenly fails? The car wheels are free to roll. Neglect the mass of the wheels.
Saturated liquid-vapor mixture of water, called wet steam, in a steam line at 2000 kPa is throttled to 100 kPa and 120?C. What is the quality in the steam .
suppose a heat engine is connected to two energy reservoirs one apool of molten aluminum 660degc and the other a block
a gymnast of weight 720n is holding himself in the cross position on the high rings. he is quite still. draw a
determine diameter of a circular rod of ductile material with a fatigue strength ,e=280 Mpa. Add a tensile yield strength of 350 Mpa. The member is subjected to a varying axial load from 700 kN to -300kN. Assume Kt=1.8 and factor of safety=2.
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