35_Problem CHAPTER 9

35_Problem CHAPTER 9 - PROBLEM 9.40 Determine the...

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PROBLEM 9.40 Determine the centroidal polar moment of inertia C J of the 32 10 10 mm × shaded area knowing that the polar moments of inertia of the area with respect to points A , B , and D are 64 45 10 mm A J , 130 10 mm B J , and 252 10 mm D J , respectively. SOLUTION Have 22 2 where A C CA CA JJA d d a =+ = Then 2 AC a (1) Have 2 2 where B C CB CB d d a d Then ( ) BC a d + (2) Have 2 2 where 4 DC C D C D d d a d = + Then ( ) 4 a d + (3) Then Equation (3) Equation(2): 2 3 DB
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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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