Hello, pls i need ur assistance on how to solve these problems
1) calculate young's modulus for an iron crystal when tension is applied along a <122> direction.
2) consider a thin-wall tube that is 1 inch in diameter and has a 0.010-inch wall thickness. let x, y and z be the axial, tangential(hoop), and radial directions, respectively.
(a) the tube is subjected to an axial tensile force of 80 lbs. and turque of 100in-lbs what is the magnitude of the largest principal stress?
(b) now let the tube be capped and let it be subject to an internal pressure of 120psi and a turque of 100in-lb, what is the magnitude of the largest principal stress and at what angles are the principle stress axes 1 and 2 to the x and y directions?
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