An aircraft box beam is built up of two thin steel sheets of thickness r = 0.60 mm, one be...

An aircraft box beam is built up of two thin steel sheets of thickness r = 0.60 mm, one bent into a semicircle of radius 60 mm and one a straight member of length 120 mm (Figure P8.40). Two 25-mrn square stringers are welded to the sheets as shown. Locate the shear center C of the cross section.

FIGURE P8.40