Materials Science And Engineering Properties
1st Edition
ISBN: 9781111988609
Author: Charles Gilmore
Publisher: Cengage Learning
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Chapter 14, Problem 9ETSQ
To determine
Theclass of material that is least expansive per unit volume over ayield strength of 1000MPa.
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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_forwardAlcoa Corporation (from Aluminum Company of America) is an American industrial corporation. It is the world's sixth largest producer of aluminum, with corporate headquarters in Pittsburgh, Pennsylvania. Alcoa is a major producer of primary aluminum, fabricated aluminum, and alumina combined, through its active and growing participation in all major aspects of the industry: technology, mining, refining, smelting, fabricating, and recycling. In a casting R&D trial of a certain aluminum alloy which performed in Alcoa Co, Ltd., by using a particular sand mold, it took 5 mins for a rectangular-prism shaped casting part (length=6 in, width=8 in, height=10 in) to solidify. Calculate the minimum solidification time of the cylindrical riser so that the riser will be effective by using Chvorinov's Rule. Use the following table for the dimensions of the cylindrical-shaped riser. diameter=10 in height= 8 in n (constant) = 2arrow_forward
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