Engineering, 11.02.2021 21:10 xxiigiddy18

At Bob’s Discount Materials Testing Emporium of Wonders, a client looking to save a few dollars wanted a test conducted in order to find the Poisson’s Ratio for a material with elastic modulus, E = 70 GPa. A 200-mm long sample with circular cross-section (diameter = 20 mm) was subjected to an elastic axial load of 60 kN. Due to funding cuts and general apathy by the staff, the equipment isn’t available to measure axial strain while in the testing apparatus so it must be calculated. Under load, the diameter was measured (using a cheap Harbor Freight micrometer) and found to have contracted by 0.015 mm. As an overworked, unpaid intern on Bob’s staff, sigh, roll your eyes, and begrudgingly calculate the following values: a. Lateral Strain, εlat.
b. Axial Strain, εaxial.
c. Poisson's Ratio, V = .
d. Shear Modulus, G = .GPa

Answers: 2

Show answers

Another question on Engineering

Engineering, 03.07.2019 14:10

Amass of 1.5 kg of air at 120 kpa and 24°c is contained in a gas-tight, frictionless piston-cylinder device. the air is now compressed to a final pressure of 720 kpa. during the process, heat is transferred from the air such that the temperature inside the cylinder remains constant. calculate the boundary work input during this process.

Answers: 2

Answer

Engineering, 03.07.2019 15:10

Two flowing streams of argon gas are adiabatically mixed to form a single flow/stream. one stream is 1.5 kg/s at 400 kpa and 200 c while the second stream is 2kg/s at 500 kpa and 100 ? . it is stated that the exit state of the mixed single flow of argon gas is 150 c and 300 kpa. assuming there is no work output or input during the mixing process, does this process violate either the first or the second law or both? explain and state all your assumptions.

Answers: 1

Answer

Engineering, 04.07.2019 18:10

Fluids at rest possess no flow energy. a)- true b)- false

Answers: 3

Answer

Engineering, 04.07.2019 18:20

Asolid cylinder is concentric with a straight pipe. the cylinder is 0.5 m long and has an outside diameter of 8 cm. the pipe has an inside diameter of 8.5 cm. the annulus between the cylinder ad the pipe contains stationary oil. the oil has a specific gravity of 0.92 and a kinematic viscosity of 5.57 x 10-4 m2/s. most nearly, what is the force needed to move the cylinder along the pipe at a constant velocity of 1 m/s?

Answers: 3

Answer

You know the right answer?

At Bob’s Discount Materials Testing Emporium of Wonders, a client looking to save a few dollars want...

Questions