The hip implant shown has a ball diameter of 50.00 mm. The arc of the cup...
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The hip implant shown has a ball diameter of 50.00 mm. The arc of the cup is 160° as shown. It is desired to make certain that the contact patch remains within 15° to make sure the ball doesn't encounter any edge loading from the hemispherical cup during use. The applied load is 2700 N, and the ball and cup are made of cobalt-chrome alloy (E = 258 GPa, v = 0.3), and are thick enough to use Hertzian contact approaches. (a) Determine the cup's internal radius to make certain that the patch contact arc is 30° as shown. Note: the circumference of a circle is 7td. (b) What is the maximum contact pressure in this case? 2500 N 115° 10° 35° Contact patch = 15⁰ The hip implant shown has a ball diameter of 50.00 mm. The arc of the cup is 160° as shown. It is desired to make certain that the contact patch remains within 15° to make sure the ball doesn't encounter any edge loading from the hemispherical cup during use. The applied load is 2700 N, and the ball and cup are made of cobalt-chrome alloy (E = 258 GPa, v = 0.3), and are thick enough to use Hertzian contact approaches. (a) Determine the cup's internal radius to make certain that the patch contact arc is 30° as shown. Note: the circumference of a circle is 7td. (b) What is the maximum contact pressure in this case? 2500 N 115° 10° 35° Contact patch = 15⁰
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Fundamentals Of Momentum Heat And Mass Transfer
ISBN: 9781118947463
6th Edition
Authors: James Welty, Gregory L. Rorrer, David G. Foster
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