PROBLEM 9.55 Two L127 ×76 ×12.7-mm angles are welded to a 10-mm steel plate. Determine the distance band the centroidal moments of inertia xIand yIof the combined section knowing that 3yxII=. SOLUTION Angle: 22420 mmA=643.9310 mmxI=×1.07410 mmyIPlate: ( )( )2200mm 10mm2000mmA==()()31200 mm 10 mm0.0166710 mm12xI×()3110 mm 200 mm6.666710 mm12yI×Centroid 0X=AyYAΣ=Σor ( ) ( )2232 2420 mm44.5 mm2000 mm5 mm205.380 mm2 24202000 mm
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This note was uploaded on 07/11/2011 for the course EGM 2511 taught by Professor Jenkins during the Spring '08 term at University of Florida.