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924_Mechanics Homework Mechanics of Materials Solution

924_Mechanics Homework Mechanics of Materials Solution -...

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Unformatted text preview: 8.9 through 8.14 Each of the following problems refers to a rolled-steel shape PROBLEM 8-9 selected in a problem of Chap. 5 to support a given loading at a minimal cost while 90 kN satisfying the requirement 0,, 5 0.1L For the selected design, deteimine (a) the actuai value of 0,, in the beam, (b) the maximum value of the principal stress 0m at the junction of a flange and the web. 8.9 Loading ot'Prob. 5.81 and selected W410 X 60 shape. From waste... 5.2: 611,]: IGO M90. ML“: :92 w.“ J 0 MA ”D lV|= ‘30 to at CW! ‘1) For wumxeo muesli 5+“! sea+fam hp =178MM’ tf': [2.80 mm 2-- 2ienio‘mmfi 5,.- {oeouo‘ mm d: LID-1 MM t”: 7.7 MM J J - d - %(C+yfl r 197.! mm 3 Q: A‘eff =~ (2178)(197.I) - LN“! x103 m. = gqouofimctexm") : (Zléwlo“)(1.7wio*°) 24.3 MP“ : 4715324.? = 7&6 mu. + R = 471.6 + 7.516 = 147.2 MPo. , .‘ l _ " __._‘. l _' —J *3 ' i ”w 5—; _ i g 4‘ ‘= a] I ‘— ...
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