A piece of an aluminum alloy is confined on two sides by a rigid die as shown in the figure. material rigid die A uniform compressive stress oz is applied to the surface of the metal alloy, and it may be assumed that there is no friction between the alloy and the die. This aluminum alloy has Young's modulus E = 70GPa and a Poisson's ratio v = 0.33. Determine the value of Oz, in MPa, necessary to cause yielding when yield = 400MPa for each of the yield criteria. Rankine Tresca Von Mises What percent is the Von Mises result different from the Tresca result? (Please calculate the difference between the von Mises and the Tresca results, relative to the von Mises result, as a percentage.)