Materials Science And Engineering Properties
1st Edition
ISBN: 9781111988609
Author: Charles Gilmore
Publisher: Cengage Learning
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Question
Chapter 14, Problem 3ETSQ
To determine
The process that is best suited for to produce automobile engine piston rods.
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The rubber band given below is subjected to the following tensile loading. Calculate the
minimum thickness of the rubber (tr) and the minimum steel pin diameter (Dpin) so that the structure does
not fail.
Consider:
Allowable tensile strength of the rubber= 20MPa
Allowable shear strength of the steel = 200MPa
Reflection:
1) How would you solve this problem if a Factor of Safety was given?
2) Are there any other dimensions worth calculating for the rubber belt?
A bronze bar is fastened between a steel bar and an
aluminum bar as shown in the figure. Axial loads are
applied at the positions indicated. The allowable overall
deformation is not to exceed 1.2 mm. Assume that the
2P
Aluminum
L- 1.5 m
A= 550 mm
E= 70 GPa
Steel
Bronze
L= 2.0 m
L= 1.0 m
A= 600 mm
A= 650 mm
E= 200 GPa
E= 83 GPa
assembly is suitably braced to prevent buckling. Find the
maximum permissible value of P.
A composite column member is
fabricated on top of a base plate as
shown in the figure. What should be
the minimum safe thickness of the
plate against punching if the total
deformation of the column is 0.72
mm. Given below are the material
properties.
Material
Jallowable Tallowable
(MPa)
(MPa)
|(GPa)
Steel
120
60
200
Aluminum
90
45
70
Steel (D- 55 mm
Alurmmum (0-110 men)
Steel
Chapter 14 Solutions
Materials Science And Engineering Properties
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- As 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. Assume that the assembly is suitably braced to prevent buckling. Use Est = 200 GPa, Eal = 70 GPa, and Ebr = 83 GPa. determine the stress in the bronze, steel, and aluminumarrow_forwardA combined section of steel and copper is subjected to a compressive load. Refer to the table below for the properties of each Steel Copper Area, A 900 mm2 1,200 mm2 Modulus of elasticity, E 200 GPa 120 GPa Allowable compressive stress 140 MPa 70 MPa Which of the following most nearly gives the load, in percent, carried by the copper? Select the correct response: 44.44% 55.56% 66.67% O33.33%arrow_forwardA composite bar is rigidly attached to the wall at A as shown in the figure. Axial loads are applied at the positions indicated. 3 m 2.5 m C 1200 kN 900 kN 80mmØ 100mmØ E = 83 GPa Bronze E = 200 GPa Steel Which of the following most nearly gives the deformation of C? a. -0.7855 mm О Ъ. +0.8575 mm c. +0.7855 mm o d. - о.8575 mmarrow_forward
- Compute the value the shear modulus G of steel whose modulus of elasticity E is 200 GPa and poisson's ratio is 0.30.arrow_forwardwhat is design strength. The material of the steel is SM275 and the size is 22mm. The sectional area is 1,650mm^2.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
- A composite column member is fabricated on top of a base plate as shown in the figure. What should be the minimum safe thickness of the plate against punching if the total deformation of the column is 0.72 mm. Given below are the material properties. Jallowable Tallowable (MPa) (MPa) (GPa) E Material Steel 120 60 200 Aluminum 90 45 70 Steel (0- 50 mn Aluminum (D110 mm) Steelarrow_forwardWhat is the value of reduction factor of the beam, if the stress in the steel is 400 MPa, and the Modulus of Elasticity of the Steel is 200,000 MPa. O 0.671 0.692 O 0.660 O 0.650 None of the Choices O 0.681arrow_forwardThe composite member is shown in the figure. If the rigid bar remains horizontal after the loading is applied and a temperature change of +10°C. Determine the total stresses on each of the vertical members considering actual stress due to the loading carried and due to temperature change. Given on the table below are the properties of each material used as members. (steel) 500 mm 150 kN 150 mm 150 mm Steel Rigid Brass (rigid bar) 250 mm Area (mm2) 700 1500 E (GPa) (brass) 200 100 a (µm/meC) 11.7 17.6 ---arrow_forward
- A composite column member is fabricated on top of a base plate as shown in the figure. What should be the minimum safe thickness of the plate against punching if the total deformation of the column is 0.72 mm. Given below are the material properties. Material Oallowable (MPa) Tallowable (MPa) E (GPa) Steel 120 60 200 Aluminum 90 45 70 Steel (D = 55 mm) Aluminum (D = 110 mm) Steel 500 mm 300 mmarrow_forwardSituation No. 2 A bronze bar is fastened between a steel bar and an aluminum bar as shown below. Axial loads are applied at the positions indicated. Find the largest value of P that will not exceed an overall deformation of 3.0 mm, or the following stresses: 140 MPa in the steel, 120 MPa in the bronze, and 80 MPa in the aluminum. Assume that the assembly is suitably braced to prevent buckling. Use Est = 200 GPa, Eal = 70 GPa, and Ebr = 83 GPa. Bronze Steel A = 480 mm? Aluminum A = 650 mm A = 320 mm 3P 4P 2P 1.0 m 2.0 m 1.5 marrow_forwardA composite column member is fabricated on top of a base plate as shown in the figure. What should be the minimum safe thickness of the plate against punching if the total deformation of the column is 0.72 mm. Given below are the material properties. Oallowable Material Tallowable (MPa) E (GPa) (MPa) Steel 120 60 200 Aluminum 90 45 70 PI Steel (D = 55 mm) Aluminum (D = 110 mm) Steel _500 mm _300 mmarrow_forward
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