02-02ChapGere.0023

02-02ChapGere.0023 - 102 A-PDF Axially Loaded : Purchase...

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Problem 2.4-15 A rigid bar AB of length L 5 66 in. is hinged to a support at A and supported by two vertical wires attached at points C and D (see figure). Both wires have the same cross-sectional area ( A 5 0.0272 in. 2 ) and are made of the same material (modulus E 5 30 3 10 6 psi). The wire at C has length h 5 18 in. and the wire at D has length twice that amount. The horizontal distances are c 5 20 in. and d 5 50 in. (a) Determine the tensile stresses s C and s D in the wires due to the load P 5 340 lb acting at end B of the bar. (b) Find the downward displacement d B at end
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