CEE111 - Design Exercise 1

# CEE111 - Design Exercise 1 - CEE 111 Design Exercise 1...

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Unformatted text preview: CEE 111 Design Exercise 1 Winter 2012 Due January 23, 2012 Work independently!!! The simple plane truss shown in Figure 1 is to be designed to carry a load of 2,000 pounds applied at joint 2. The members of the truss are to be comprised of bars of circular cross section, pinned (i.e., supported no moment) at the three points shown in the figure. Figure 1. Simple Truss Configuration Although the design is required to use a single structural material in the final design, three different materials are to be considered for the bars: 1) Aluminum, 2) Stainless steel, and 3) Carbon Steel. The associated engineering, material, and cost properties of these materials are shown in Table 1. Table 1. Material Properties 15 ft 20 ft 2000 lb 1 3 2 Material Yield f y (psi) E (lb-in 2 ) Cost (\$/lb) Density (lb/in 3 ) Aluminum 35,000 10.2 x 10 6 \$1.05 0.100 Stainless Steel 40,000 27.6 x 10 6 \$1.85 0.292 Carbon Steel 30,000 29.0 x 10 6 \$0.40 0.284 The budget available for the cost of materials in the construction of the truss is \$1,000; i.e., the The budget available for the cost of materials in the construction of the truss is \$1,000; i....
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CEE111 - Design Exercise 1 - CEE 111 Design Exercise 1...

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