Materials Science And Engineering Properties
1st Edition
ISBN: 9781111988609
Author: Charles Gilmore
Publisher: Cengage Learning
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Chapter 14, Problem 2ETSQ
To determine
Thetype of material that has low elastic modulus.
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An aluminum alloy cylinder with a diameter of 76 mm and a height of
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A metal rod with 10mm diameter is subjected to 9kN tensile load. Calculate the resulting diameter of the rod after loading. Assume that the modulus of elasticity is70 GPa, Poisson’s ratio is 0.33, and the yield strength is145MPa.
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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_forwardA metal rod with 0.5 inch diameter is subjected to 2000 lb tensile load. Calculate the resulting diameter of the rod after loading. Assume that the modulus of elasticity is 10,000,000 psi, Poisson’s ratio is 0.33 and the yield strength is 21,000 psi.arrow_forwardSolve for Vmax and Mmax. Subject: Strength of Materials Topic: Moving Loadsarrow_forward
- An aluminum alloy cylinder with a diameter of 76 mm and a height of150 mm. is subjected to a compressive load of 220 kN. Assume that the material is within the elastic region and a modulus of elasticity of 75 GPa.a. What will be the lateral strain if Poisson’s ratio is 0.33?b. What will be the diameter after load application?c. What will be the height after load application?arrow_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_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.arrow_forward
- A tensile stress is applied along the long axis of a cylindrical aluminum rodwith a diameter of 10 mm. If the deformation is entirely elastic, determine themagnitude of the load required to produce a 2.5 * 10-3mm change in diameter. Assume a modulus of elasticity of 70 GPa and a Poisson’s ratio of 0.33.arrow_forwardThe composite beam shown in the figure is simply supported and carries a total uniform load of 40 kN/m on a span length of 4.0 m. The beam is built of a southern pine wood member having cross-sectional dimensions 150 mm 250 mm and two brass plates of cross-sectional dimensions 30 mm 150 mm. (a) Determine the maximum stresses B and w in the brass and wood, respectively, if the moduli of elasticity are EB 96 GPa and Ew 14 GPa. (Disregard the weight of the beam.) (b) Find the required thickness of the brass plates so that the plate and wood reach their allowable stress values, saB 70 MPa and saw 8.5 MPa, simultaneously under the maximum moment. What is the maximum moment?arrow_forwardAn aluminum alloy rod has a circular cross section with a diameter of 8 mm. This rod is subjected to a tensile load of 4 kN. Assume that the material is within the elastic region and E = 69 GPa. a. What will be the lateral strain if Poisson’s ratio is 0.33? b. What will be the diameter after load application?arrow_forward
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