Materials Science And Engineering Properties
1st Edition
ISBN: 9781111988609
Author: Charles Gilmore
Publisher: Cengage Learning
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Chapter 14, Problem 4CQ
To determine
The relative elastic modulus used by the stiffness requirement for the relative merit in weight-critical designs.
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(a) the modulus of elasticity in GPa for the Aluminum
B) the proportional limit in MPa for the Aluminum
C) the ultimate strength in MPa for the Aluminum
D) Ductility of material based on percent elongation
value for modulus of elasticty for steel is 29000 ksi and for aluminum it is 10000ksi. yield strength for steel is 36 ksi and yield strength for aluminum is 37 ksi
A sheet of aluminum is stretched in the xy-plane. If the strains in the sheet are ϵx = 0.3 x10-3 and ϵy = 0.25 x10-3, compute σx and σy. Use E = 110 GPa and v = 0.35.
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Materials Science And Engineering Properties
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- what is design strength. The material of the steel is SM275 and the size is 22mm. The sectional area is 1,650mm^2.arrow_forwardHello is my answer key correct on the stress at service load on bottom and top fiber Can you indicate which one is the service load and transfer of pre stressarrow_forwardSpecify a suitable aluminum casting alloy for a bar with square crosssection. Length of one side of the cross-section is 50 mm. The bar is subjected toan impact loading with a tensile force of 60 kNarrow_forward
- The composite bar shown is rigidly attached to the two supports. The left portion of the bar is copper, of uniform cross-sectional area 80 c?^2 and length 30 cm. The right portion is aluminum, of uniform cross-sectional area 20 c?2 and length 20 cm. At a temperature of 26℃ the entire assembly is stress free. The temperature of the structure drops and during this process the right support yields 0.025 mm in the direction of the contracting metal. Determine the minimum temperature to which the assembly may be subjected in order that the stress in the aluminum does not exceed 160 MPa. For copper E = 200 GPa, ? = 17x10^-6/℃, and for Aluminum E = 80 GPa, ? = 23x10^-6/℃.arrow_forwardThe cube of aluminum is subjected to the three stresses shown. Determine the principal strains. Take Eal = 10(103) ksi and nal = 0.33.arrow_forwardAs shown in the figure below, a bronze bar is affixed between a steel bar and an aluminum bar. Axial loads are applied at the positions indicated. If the largest value of P that will not exceed an overall deformation of 4.0 mm, or the following stresses: 150 MPa in the steel, 130 MPa in the bronze, and 90 MPa in the aluminum, determine the stress in the bronze. Assume that the assembly is suitably braced to prevent buckling. Use Est = 200 GPa, Eal = 70 GPa, and Ebr = 83 GPa. (The correct answer is 71.36 MPa. Can you show the solution? Thank you!)arrow_forward
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