A composite beam is constructed using a steel plate (15 mm x 170 mm) with two wood beams (75 mm x 170 mm) on either side. The wood and steel are securely fastened to act as a single beam. The beam is subjected to a positive bending moment M, = 6.80 kN • m. Steel Wood Calculate the maximum tensile and compressive stresses in the wood and steel if E = 11 GPa and E, = 200 GPa. (Enter your answers in MPa. Use the deformation sign convention. Use the general theory for composite beams described in the textbook.) maximum tensile stress in wood MPa maximum tensile stress in steel MPa maximum compressive stress in wood MPa maximum compressive stress in steel MPa

A composite beam is constructed using a steel plate (15 mm x 170 mm) with two wood beams (75 mm x 170 mm) on either side. The wood and steel are securely fastened to act as a single beam. The beam is subjected to a positive bending moment M, = 6.80 kN • m. Steel Wood Calculate the maximum tensile and compressive stresses in the wood and steel if E = 11 GPa and E, = 200 GPa. (Enter your answers in MPa. Use the deformation sign convention. Use the general theory for composite beams described in the textbook.) maximum tensile stress in wood MPa maximum tensile stress in steel MPa maximum compressive stress in wood MPa maximum compressive stress in steel MPa

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter12: Composite Materials

Section: Chapter Questions

Problem 12.7P: Estimate the transverse tensile strength of the concrete in Problem 12.6.

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A composite beam is constructed using a steel plate (14 mm x 155 mm) with two wood beams (75 mm x 155 mm) on either side. The wood and steel are securely fastened to act as a single beam. The beam is subjected to a positive bending moment M₂ = 6.50 kN. m. Steel- Wood i Calculate the maximum tensile and compressive stresses in the wood and steel if Ew = 11 GPa and E = 200 GPa. (Enter your answers in MPa. Use the deformation sign convention. Use the general theory for composite beams described in the textbook.) maximum tensile stress in wood MPa maximum tensile stress in steel MPa maximum compressive stress in wood MPa maximum compressive stress in steel MPa
A joint is made by gluing two plywood gussets of thickness t to wood boards. The tensile working stresses are 1200 psi for the plywood and 700 psi for the boards. The working shear stress for the glue is 50 psi. Determine the dimensions b and t so that the joint is as strong as the boards.
3. A steel baris l0mm diamelex and am lo It is stretched with a force of 20kN and exteads by 0-2mm- Calaulale e stress and strain.
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A composite beam is made of two brass [E = 99 GPa] plates bonded to an aluminum [E = 63 GPa] bar, as shown. The beam is subjected to a bending moment of 2210 N-m acting about the z axis. Assume b=44 mm, d1=28 mm, d2=13 mm. Determine:(a) the maximum bending stresses σbr, σal in the brass plates and the aluminum bar.(b) the stress in the brass σbrjσb⁢r⁢j at the joints where the two materials are bonded together.
A joint is made by gluing two plywood gussets of thickness t to wood boards. The tensile working stresses are 1200 psi for the plywood and 700 psi for the boards. The working shear stress for the glue is 50 psi. Determine the dimensions band so that thejoint is as strong as the boards.
– A joint is made by gluing two plywood gussets of thickness t to wood boards.The tensile working stresses are 1200 psi for the plywood and 700 psi for the woodboards. The working shear stress of the glue is 50 psi. Determine the dimensions’ b and tso that the joint is as strong as the boards.
A composite beam is made of two brass [E - 111 GPa] bars bonded to two aluminum [E - 72 GPa] bars, as shown. The beam is subjected to a bending moment of 250 N-macting about the z axis. Using a - 10 mm, b- 65 mm, c- 20 mm, and d- 45 mm, calculate (a) the maximum bending stress in the aluminum bars. (b) the maximum bending stress in the brass bars. Aluminum Brass Brass Aluminum Answers: (a) Oa i MPa (b) Oer MPa Save for Later Attempts: 0 of 1 used Submit Answer
The composite bar shown is firmly attached to unyielding supports. An axial load P= 200 kN is applied at 20°C. Assume a = 11.7 um/(m °C) for steel and 23.0 um'(m °C) for aluminum. Find the reaction at the left support. a. find the reaction at the left supportb.find the stress at the steelc. find the stress at the aluminum