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238_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

# 238_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

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Problem 2.11-3 A circular bar of length L 32 in. and diameter d 0.75 in. is subjected to tension by forces P (see figure). The wire is made of a copper alloy having the following hyperbolic stress-strain relationship : (a) Draw a stress-strain diagram for the material. (b) If the elongation of the wire is limited to 0.25 in. and the maximum stress is limited to 40 ksi, what is the allowable load P ? s 18,000 P 1 + 300 P 0 … P … 0.03 ( s ksi) 232 CHAPTER 2 Axially Loaded Members Solution 2.11-2 Axially loaded bar L 1.8 m A 480 mm 2 P 1 30 kN P 2 60 kN Ramberg–Osgood Equation: Find displacement at end of bar. (a) P 1 ACTS ALONE (b) P 2 ACTS ALONE ; d c L

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238_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

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