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A composite beam is made of two brass [E = 99 GPaj plates bonded to an aluminum [E = 70 GPa] bar, as shown. The beam is subjected to a bending moment of 1570 N-m acting about the z axis. If the moment of inertia about the z axis of the equivalent all-aluminum beam is 690000 mm4, find the maximum bending stress in the aluminum plate. Brass Aluminum Brass 50 mm 10 mm 30 mm 10 mm

A composite beam is made of two brass [E = 99 GPaj plates bonded to an aluminum [E = 70 GPa] bar, as shown. The beam is subjected to a bending moment of 1570 N-m acting about the z axis. If the moment of inertia about the z axis of the equivalent all-aluminum beam is 690000 mm4, find the maximum bending stress in the aluminum plate. Brass Aluminum Brass 50 mm 10 mm 30 mm 10 mm

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A composite beam is made of two brass [E = 99 GPa] plates bonded to an aluminum [E = 70 GPa] bar, as shown. The beam is subjected to a bending moment of 1570 N-m acting about the z axis. If the moment of inertia about the z axis of the equivalent all-aluminum beam is 690000 mm4, find the maximum bending stress in the aluminum plate. Brass Aluminum Brass 20.5 MPa O 31.6 MPa O 24.3 MPa 34.1 MPa O 28.9 MPa 50 mm 10 mm 30 mm 10 mm
Transcribed Image Text:A composite beam is made of two brass [E = 99 GPa] plates bonded to an aluminum [E = 70 GPa] bar, as shown. The beam is subjected to a bending moment of 1570 N-m acting about the z axis. If the moment of inertia about the z axis of the equivalent all-aluminum beam is 690000 mm4, find the maximum bending stress in the aluminum plate. Brass Aluminum Brass 20.5 MPa O 31.6 MPa O 24.3 MPa 34.1 MPa O 28.9 MPa 50 mm 10 mm 30 mm 10 mm
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