47_Problem CHAPTER 9

47_Problem CHAPTER 9 - PROBLEM 9.47 Determine the polar...

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PROBLEM 9.47 Determine the polar moment of inertia of the area shown with respect to ( a ) point O , ( b ) the centroid of the area. SOLUTION 2 ,mm A y 3 yA 1 () 2 120 22 619.5 2 = π 50.9296 6 1.1520 10 × 2 ( ) 1 240 90 10 800 2 −= 30 6 0.324 10 −× Σ 11 819.5 6 0.828 10 × Now 63 2 0.828 10 mm 70.054 mm 11819.5 mm AY Y A Σ× == = Σ ( a ) ( ) 12 OO O JJ J =− where 46 4 1 120 mm 162.86
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This note was uploaded on 07/11/2011 for the course EGM 2511 taught by Professor Jenkins during the Spring '08 term at University of Florida.

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