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a very wide sheet of 7075-T651 aluminum plate, 8mm thick is found to have a single-edge through-the-thickness crack 25 mm long. The loading produes a gross nominal tension stress of 45 MPa perpendicular to the plane of the crack tip.
Calculate the stress intensity factor at the crack tip.
Determine the critical stress-intensity factor.
Estimate the factor of safety.
the horizontal motion of the plunger and shaft is arrested by the resistance of the attached disk which moves through
If the unit can perform its function either in State 1 or 2, find the steady-state availability A for the device.
two previously undeformed cylindrical specimens of an alloy are to be strain hardened by reducing their cross-sectional
the density of liquid water at 25 c is 997 kgm3 and the specific gravity of solid water ice at 0 c is 0.98. 100 kg of
A tensile specimen of cartridge brass sheet has a cross section of 0.320 in. × 0.120 in. and a gage length of 2.00 in. Calculate the engineering strain that occurred during a test if the distance between gage markings is 2.35 in. after the test.
the motion of a particle is defined by the position vector r=a(cos t + t sin t)i + A(sin t-t cos t)j, where t is expressed in seconds. Determine the values of t for which the position vector and acceleration are.
lf the 50-kg crate starts from rest and achieves a velocity of v 4 ms when it travels a distance of 5 m to the right
determine the power of a pump if 2000 kgmin of water is compressed from 100 kpa to 1 mpa. the water density can be
Examine the influence of the vibration on the grain size, microstructure and mechanical properties of aluminium-silicon alloys (Al-Si) during solidification.
assume that a seismically excited system is accurately modeled by a mass attached to the ground by a spring and a
Calculating the mechanical properties of unidirectionally reinforced composites
the revolving joint type v of an industrial robot has a range of 240? rotation. the mechanical errors in the joint and
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