114_Problem CHAPTER 9

114_Problem CHAPTER 9 - PROBLEM 9.96 Using Mohr's circle...

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PROBLEM 9.96 Using Mohr’s circle, determine the moments of inertia and the product of inertia of the L5 × 3 × 1 2 -in. angle cross section of Problem 9.78 with respect to new centroidal axes obtained by rotating the x and y axes through o 30 counterclockwise. SOLUTION Have 4 9.45 in x I = 4 2.58 in y I = From Problem 9.78 4 2.8125 in xy I = Now 4 ave 6.015 in 2 xy II I + == and () 2 2 2 xy RI  =+   4 4.43952 in = Then ( ) 1 22 .8125 2t a n 3 9 . 3 1 9.45 2.58 m θ  = =− ° 
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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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