Midterm2 - UCSD, Spring 2010 MAE 131A / SE 110A: Midterm 2...

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Unformatted text preview: UCSD, Spring 2010 MAE 131A / SE 110A: Midterm 2 Problem 1: A compressive force F = 100 kN is applied at the point A of the column with the cross section shown in Fig. 1. Determine the neutral axis of the cross section and the maximum tensile and compressive stresses in the column. 2.0" Problem 2: Determine the thickness 6 of the cross section of the beam shown in Fig. 2, knowing that can = 120 MPa. The force F = 10 kN and the distributed load 11) = 20 kN/m. M’ujkvu" 2- :fulk‘l‘u'=\,s '- E€4h2fl2 In ?C= 40‘2 +/o.2+2a.1 «:1 __.~, 3“ Mi" 2 3+3-‘N’ -—-- -1. ix, 2&2 l2. .1, 2- [ii 2.;34— 31. 90]_:zoee.mc..? 2, ,. .1 2,303+2 [-1 Imagr Q:2o]:4fé§.€7fw I3 '" l2. '2' A: 2:20+2-b-+2J~9 ff 1 1 Ix. __ 4066.67 A A 8'0 y 71; £51; M86162 3. A W ,vL ' is: “g: I 61w“?— 5.13 F M [:3 : fl“— , ":— gig-r'fl—XBI : .. '22 ... l0an 1’ + 90 106C437 unflx-TML/v 7. 1“: )1}- 2 luNsz3+ 000.205 ‘ K.‘ 1 - 3 ‘—- 9 3‘ 9f.2§+40§ 205: 49/5 QOkJ/Cm 4 #61991”, '— ’Q-Ega ...
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