An aircraft box beam has a symmetrical cross section (Figure P8.41). It consists of two ve...

An aircraft box beam has a symmetrical cross section (Figure P8.41). It consists of two vertical webs and two horizontal flanges, each of thickness 0.60 mm, two 20 mm by 20 mm by 4 mm angle-section stringers (A= 146 mm2 and centroid located 6.4 mm from the outside face of the angle leg), and two 20-mm-wide by 20-mm-deep by 4-mm-thick T-section stringers. Locate the shear center C of the cross section.

FIGURE P8.41