Materials Science And Engineering Properties
1st Edition
ISBN: 9781111988609
Author: Charles Gilmore
Publisher: Cengage Learning
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Chapter 14, Problem 4ETSQ
To determine
The materials which cannot be chosen for the anchor stem of hip implant.
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Students have asked these similar questions
The assembly shown is composed of a steel shell and an
aluminum core that has been welded to a rigid plate. The gap
between the plate and the steel shell is 1- mm. If the assembly's
temperature is reduced by 180°C, determine (a) the final axial
stresses in each material and (b) the deflection of the rigid bar.
To support your response, draw a deformation diagram with
appropriate labels.
Use the following properties:
Aluminum core
Steel shell
Diameters (mm)
d = 15 mm
do = 30 mm
d₁ = 20 mm
E (GPa)
70
200
2 m
a (/°C)
22 x 10-6
12 x 10-6
1. The tensile strength vs. temperature curves of aluminum are plotted
below. Explain the meaning of these two curves.
400
Ultimate strength
300
Yield strength
200
100
-200 -150 -100
-50
50
100
150
200
250
Temperature, °C
Strength, kPa
A force of 100,000 N is applied to an iron bar with a cross-sectional area of 10 mm × 20mm and having a yield strength of 400 MPa and a tensile strength of 480 MPa,Determinea. whether the bar will plastically deform; andb. whether the bar will experience necking
Chapter 14 Solutions
Materials Science And Engineering Properties
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- The frame of a space shuttle type vehicle must have a high yield strength and high stillness, and the most important design factor is weight. Of all the materials presented in this chapter, what material might be the most suitable for the frame of a space shuttle? Assume that there will be both tensile and compressive stresses. For a space shuttle, cost is not a limiting factor. (a) You can eliminate entire classes of materials from consideration with a brief statement about their unsuitability. (b) What material has the highest specific yield strength? Give the yield strength, specific gravity, specific yield strength, elastic modulus, and specific elastic modulus for this material. (c) What material has the highest specific elastic modulus? Give the yield strength, specific gravity, specific yield strength, elastic modulus, and specific elastic modulus for this material. (d) Compare the materials with the highest specific yield strength and highest specific elastic modulus for suitability in the space shuttle frame. (C) Discuss the suitability of the top-rated material for this design from the viewpoint of the ability to produce a frame.arrow_forwardTo stretch a 200 mm long tensile test specimen (a) of steel elastically by 0.08 mm. How many loads do I need to apply? (b) What is the maximum length of this sample without plastic deformation? How long can it be extended? (The modulus of elasticity of steel is 210 GPa, yield strength 580 MPa, tensile strength 920 MPa specified as.arrow_forward10 Which is not an elastic constant? Bulk modulus Shear Modulus none of the choices Modulus of elasticityarrow_forward
- The material can able to resist wear and tear for many years is called a. Tough Material O b. Elastic Material O c. Strong Material d. Durable Materialarrow_forwardThree materials X, Y, and Z are available for a certain usage. Any material selected must have a good weldability. Tensile strength, stiffness, stability and fatigue strength are required with fatigue strength considered being the most important and stiffness the least important of these factors. The three materials are rated as follows in these factors. Properties X Y Weldability Excellent Рoor Good Tensile strength G E Fair Stiffness Very Good G G Stability G E G Fatigue strength F G E Which material should be selected? Explain your choice.arrow_forwardIn the plastic range of a material, if the load is removed the material will: a. reach failure and break O b. continue up to elastic limit O C. go back to its original shape o d. remain in its current shapearrow_forward
- A tensile load of 150kN is applied to a round metal bar with a diameter of 16mm and a gage length of 80mm. Under this load, the bar elastically deforms so that the gage length increases to 80.1192mm and the diameter decreases to 15.89mm. a.) Modulus of elasticity (MPa)b.) Poisson's ratio for this metalarrow_forwardThe following figure shows the tensile stress-strain curve for a plain-carbon steel. 600 80 500 MPa 600 10 psi 60 80 400 400 60- 300 40 40 200 200 20 20 100 0.005 0.05 0.10 0.15 Strain (a) What is this alloy's tensile strength? MPа (b) What is its modulus of elasticity? GPa (c) What is the yield strength? i MPa Stress (MPa) Stress (10 psi)arrow_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 prismatic aluminum bar has cross-sectional dimensions 40 x 60 mm and a length of 350 mm. The modulus of elasticity is 70 GPa and Poisson's ratio is u=0.35. When an axial load of 100 kN is applied, the proportional change in the bar's volume isarrow_forwardA steel bar has a length of 2.5 m and cross-section of 200-mm x 100-mm. The modulus of elasticity of this material is 210 GPa and Poison's Ratio is 0.3. The change in width after applying a tensile force of 150 kN is?arrow_forwardA 100 mm x 100 mm x 100 mm cube made with glass polymers in the y- direction is subjected to a tensile load of 100 kN along the y-direction. However, the cube is constrained against deformation in the x and z directions. Given the following properties: Ex = 20 GPa Ey = 50 GPa Ez = 20 GPa Vxy = 0.25 Vxz = 0.5 Vyz = 0.25 (a) Compute for the change in length of the cube in the y-direction and; (b) Determine the stresses, ox,Oy,Oz•arrow_forward
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