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01-01ChapGere.0012 - 12 A-PDF Tension Compression and Shear...

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Problem 1.3-4 The strength-to-weight ratio of a structural material is defined as its load-carrying capacity divided by its weight. For materials in tension, we may use a character- istic tensile stress (as obtained from a stress-strain curve) as a measure of strength. For instance, either the yield stress or the ultimate stress could be used, depending upon the particular application. Thus, the strength-to-weight ratio R S/W for a material in tension is defined as R S/W in which is the characteristic stress and is the weight density. Note that the ratio has units of length. Using the ultimate stress U as the strength parameter, calculate the strength-to-weight ratio (in units of meters) for each of the following materials: aluminum alloy 6061-T6, Douglas fir (in bending), nylon, structural steel ASTM-A572, and a titanium alloy. (Obtain the material properties from Tables H-1 and H-3 of Appendix H. When a range of values is given in a table, use the average value.) 12 CHAPTER 1 Tension, Compression, and Shear
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  • Spring '08
  • Armanios
  • Tensile strength, ultimate stress, high strength-to-weight ratio, strength-to-weight ratio, strength-to-weight ratio RS/W

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