156_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

156_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

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Unformatted text preview: Sec_2.4.qxd 9/25/08 150 11:38 AM Page 150 CHAPTER 2 Axially Loaded Members SOLVE SIMULTANEOUSLY EQS. (1), (6), AND (7): Ps P Es As Es As + Eb Ab + Ec Ac 4 kips Pb P EbAb Es As + Eb Ab + Ec Ac 2 kips Pc P Ec Ac Es As + Eb Ab + Ec Ac 3 kips Ps Pb Pc 9 statics check COMPRESSIVE STRESSES Let EA ss Ps As sc Pc Ac EsAs EbAb PEs © EA sb EcAc Pb Ab PEb © EA PEc © EA compressive stresses ss Ps As s 3 ksi ; sb Pb Ab b 2 ksi ; sc Pc Ac c 2 ksi ; ...
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