Question

> Expand panel to show video Example 22-2 Determine the moments of inertia of the beam's cross-sectional area shown about the x and y centroidal axes. 100 T 400 | 1001 X с 400 100 600 Dimension in mm Lecture 22

Answer 1

100 IT 300 O TY 41 = yg = 150+50 200 100 x, = 2 = 200+50 - 250 X K-X, € K 400 lå T 300 K ܕܪܠ1ܕ܂ 'x + t moment of Ineletia about x - axis. Ix = 1, +I X FCyxby dp + 2,499+ bydz (the bod's + As Y3) = tx 100x 3003+(100x300) x 200° +* *600 x 1003 x 100x300* +(300X100) x 2002 In moment of Anettia about y-axis Ij Ilgt Isy t Izy = 16 diba +1,2%)+d2b3 + bxd_b = [300x100°+ (00x 300x250%) + fal00x600%. ++x30011003 +100x300x2502 Ty 37.25 x 100 mm 4 14 x 10 mm4 3 3 1 3°3 12