3. In the slotted ring shown, two loads of magnitude P are applied such that the

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3. In the slotted ring shown, two loads of magnitude P are applied such that the 3 mm gap closes. Use E 70 GPa, v 0.3, t 6 mm. (30) 3 mm 3 mm 10 mm Gap 3 mm 3 mm 3 mm Thickness 6 mm FIGURE P5.25 a. Model this as a shell. Determine the magnitude of P to close the gap. b. Model this as a solid (Solid185). Determine the magnitude of P to close the gap. c. Compare the two results. Is the shell a valid assumption? d. Try the shell model with symmetry. Where is the symmetry and how would you apply symmetry conditions? Hint: 1)Use Booleans to make to model (i.e. make a ring ri 5 mm and ro 15, using partial annulus), then cut the slots with subtraction. Make an area of dimension x 3,20 and y -1.5 to 1.5. Change the coordinate to cylindrical and copy this area to 120 and 240 deg. Use subtract Boolean to cut the slots. Find the deflection of the gap for, say P 100 and multiply the deflections proportionally

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