Second Moment of Area

Second Moment of Area
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Posted by: clement007dube ^®

08/15/2006, 02:30:34

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A 1200 mm Diameter Pole, 6 mm thickness is has a 415 x 415 mm square cut-out. I want to calculate second moment of area along the slotted area for bending strength evaluations.
Kindly suggest any method I can use.

Clement

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Re: Second Moment of Area

Re: Second Moment of Area -- clement007dube Post Reply Top of thread Forum

Posted by: Kelly Bramble ^®

08/15/2006, 12:28:57

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Well, if you have a Mechanics of Materials or Statics book around it will be detailed appropriately.
Draw the geometry cross section out and divide the geometry into section. The second moment for a circle is Ix = Iy =(1/4)*pie*r^4 and the moment for a rectangle is (1/12)BH^3
Sum or substract as required.

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