A composite beam is made of two brass (E = 107 GPa] plates bonded to an aluminum [E = 65 GPa] bar, as shown. The beam is subjected to a bending moment of 1890 N-m acting about the z axis. Assume b=59 mm, dq=49 mm, d2=10 mm. Determine: (a) the maximum bending stresses opr, Gal in the brass plates and the aluminum bar. (b) the stress in the brass oprj at the joints where the two materials are bonded together. Brass (2) dz Aluminum (1) Brass (2) dz Answers: (a) Obr = MPa, oal = i MPa. (b) obri = MPa.

Mechanics of Materials (MindTap Course List)
9th Edition
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
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Chapter6: Stresses In Beams (advanced Topics)
Section: Chapter Questions
Problem 6.3.10P: The cross section of a composite beam made of aluminum and steel is shown in the figure. The moduli...
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A composite beam is made of two brass [E = 107 GPa] plates bonded to an aluminum [E = 65 GPa] bar, as shown. The beam is subjected
%3!
to a bending moment of 1890 N-m acting about the z axis. Assume b=59 mm, d,=49 mm, d2=10 mm. Determine:
(a) the maximum bending stresses opr, oal in the brass plates and the aluminum bar.
(b) the stress in the brass obrj at the joints where the two materials are bonded together.
Brass (2)
dz
Aluminum (1)
Brass (2)
dz
b
Answers:
(a) Obr =
i
MPa, oal =
i
MPa.
(b) Obri
i
MPа.
Transcribed Image Text:A composite beam is made of two brass [E = 107 GPa] plates bonded to an aluminum [E = 65 GPa] bar, as shown. The beam is subjected %3! to a bending moment of 1890 N-m acting about the z axis. Assume b=59 mm, d,=49 mm, d2=10 mm. Determine: (a) the maximum bending stresses opr, oal in the brass plates and the aluminum bar. (b) the stress in the brass obrj at the joints where the two materials are bonded together. Brass (2) dz Aluminum (1) Brass (2) dz b Answers: (a) Obr = i MPa, oal = i MPa. (b) Obri i MPа.
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