HW10 - 14.1 Determine the normal stress in a ball, which...

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14.1 Determine the normal stress in a ball, which has an outside diameter of 220 mm and a wall thickness of 3 mm, when the ball is inflated to a gage pressure of 110 kPa. Fig. P14.1 Solution 220 mm 3 mm 220 mm 2(3 mm) 214 mm (0.110 MP 1.96 a)(2 2 1 M 4 Pa mm) 4 4(3 mm) a D t d pd t Ans.
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14.5 The normal strain measured on the outside surface of a spherical pressure vessel is 820  . The sphere has an outside diameter of 54 in. and a wall thickness of 0.50 in., and it will be fabricated from an aluminum alloy [ E = 10,000 ksi; = 0.33]. Determine (a) the normal stress in the vessel wall and (b) the internal pressure in the vessel. Solution (a) Normal stress in the vessel wall 2 66 2 () 1 10,000 ksi [(820 10 in./in.) (0.33)(820 10 in./in.) 12. ] 1 (0.33) 12.239906 ks 2 k i i 4s x x y E     Ans. (b) Internal pressure 54 in. 0.50 in. 54 in. 2(0.50 in.) 53 in. 4 4(12.239906 ksi)(0.50 in.) 0.461842 ksi 462 ps 4 in. i 53 a a D t d pd t p td Ans.
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14.7 A cylindrical boiler with an outside diameter of 3.60 m and a wall thickness of 40 mm is made of a
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HW10 - 14.1 Determine the normal stress in a ball, which...

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