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923_Mechanics Homework Mechanics of Materials Solution

923_Mechanics Homework Mechanics of Materials Solution - 8...

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Unformatted text preview: 8. 7 and 8.8 (a) Knowing that 0.“ =24 ksi and 2',“ =14.5 ksi, select the most economical wide-flange shape that should be used to support the loading shown. (b) Determine the values to be expected for a... amend the principal stress am at the junction of a flange and the web of the selected beam. PROBLEM 8.8 1.53 kips’ft f): Ma = o -Izr?.+<z.s)c:33(3)=o 1?,.=e..7s kip" DZ MA = O 12 1% + (mama): 0 QB 720.25'1693 1 “NW '-' H. 25 kips helm: 27 Inf-H - 324 lap-1n —n.2s _ .. (6?. when“: ) c: %o‘: 131" = 4.94! .‘n. y...= C - 1t; = #30:: - 0.270 = 4.725 in. Q: 1% 6'... =(L—j22§3(23.5)=. 22.2 ks: = [(52% + .13.: = itafiihmw = 12.: ks: Sm: é:1"+12 = 222 + 12.1 = 23-2105? “‘ ...
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