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74_Mechanics Homework Mechanics of Materials Solution

# 74_Mechanics Homework Mechanics of Materials Solution -...

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Unformatted text preview: 2.24 Members AB and CD are 1% -in.-diameter steel rods, and members BC and AD PROBLEM 2.25 7 I I . I . are 7;- -1n.-d1ameter steel rods. When the turnbuckle is tightened, the diagonal member AC is put in tension. Knowing that E = 29 X 106 psi and h = 4 ft. determine the largest allowable tension in AC so that the deformations in members AB and CD do not exceed 0.04 in. 2.25 For the structure in Prob. of 2.24, determine (a) the distance It so that the deformations in members AB, BC, CD and AD are all equal to 0.04 in., (b) the corresponding tension in member AC. SOLUTION (60 S'l‘asl-i'c'st Use Join'l “B as 9.4%.: beat, Fm». simijmr 'l'n‘othﬁes ' . _ F 1:50 LED 513’— : E‘— — _F_69_ Fin SD FAB la la b ‘ Lat. , \ FAB 2 lg" Fe: Permian-ﬁfe geomol'ry For 2:} 0a,? ale-Form atl'i'cms s..=s...~. fag-“1%; affag F... Equul‘u‘nj expressions 'For Fin.5 haréﬁa E:&§=M=d‘; " h Au. 4 b1 so Eda." or." {A} Sﬁ‘H’Inj 8.53 3 33¢, 1' 0.04 I‘m. S .. Fae. l1) - F86 -; E Albee \$8:- 2 (2?Yl0‘)3§(.%)1(0-04) G = lasagna“ IL. FAB : l7I; Flu. I: %(l°l.376>¢(03) "‘ Til-9'2 >403 [L From +LQ lorce “triangle F59 = FA; :1 FaaL-t Fm: = 31.6 ”[03 1/3. "‘ ...
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