Section A3.10 example 4

Section A3.10 example 4 SECTION A3.10 EXAMPLE 4

For the skin-stringer cross section shown, determine the

(a) moment of inertia about the centroidal x axis

(b) moment of inertia about the centroidal y axis

EQUATIONS USED

SOLUTION

With respect to the yellow stiffener with the area of 2 sq in , the centroid is located at

The rectangular moments and product of inertia are

Because the cross section is not symmetrical about x or y axis, the product of inertia is not zero.