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The figure below shows the engineering stress-strain curve for pure polycrystalline aluminum; the numerical data for this figure are in the file https://web.mit.edu/course/3/3.225/alum.txt, which can be imported into a spreadsheet or other analysis software. For this material, determine
(a) Young's modulus,
(b) the 0.2% offset yield strength,
(c) the Ultimate Tensile Strength (UTS),
(d) the modulus of resilience, and
(e) the modulus of toughness.
a piston-cylinder device contains 0.15kg of air initially at 2mpa and 350oc. the air is first expanded isothermally to
1. what types of engineers e.g. civil construction mechanical industrial material science electrical etc. do you think
White noise has a constant level when measured in frequency bands of constant width. Suppose a noise generator produces white noise over the octave bands 0.5,1,2,4,8 khz. Find the overall un weighted and a-weighted sound pressures if a sound pressure..
determine the no2 emissions rate lbhr from a steam plant that uses sugar mill waste 3300 btulb to generate 1000 lb
you are to design a horizontal cantilever beam of uniform circular cross-section made of heat treated al 2024-t4. the
A material with a true stress strain curve? = 350 E0.25 MPa is used in wire drawing. Calculate the maximum reduction in cross sectional area per pass based on ideal conditions.
Derive an expression for estimating the pressure at which graphite and diamond exist in equilibrium at 25°C in terms of the specific volume, specific Gibbs function, and isothermal compressibility of each phase at 25°C, 1 atm. Discuss.
Calculate the cost per piece of a milling operation that is used to machine a pocket of 2”x3”x0.5” (LxWxD). The material being machined is high silicon aluminium. The tool material is PCD.
steam is contained in a rigid container at an initial pressure of 100 psia and 600 f. the pressure is reduced to 10
air enters the compressor of an air-standard brayton cycle at 100kpa 300k with a volumetric flow rate of 5m3s. the
A triangular field with vertices OPQ has sides OP equal 402 m, PQ equal 388 m, and QO equal 254 m . find perpendicular distance from the vertex P to the opposite side.
for the stress element with sigmax 1400psi sigmay 600psi and shear 950 psi determine the average stress the maximum
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