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328_Mechanics Homework Mechanics of Materials Solution

328_Mechanics Homework Mechanics of Materials Solution - 1...

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Unformatted text preview: 1 447.1. W 1—1 4.45 and 4.46 A cuppa: strip (E, '1' 105 GPa) and an aluminum strip ( I===75 GPa) PROBLEM ‘1“ are bonded togetherto form the wmpos its bar shown. Knowiugthstthe is bent about a horimntal axis by s couple” of mm 35 N m. detenminc the mmdmum stress in (a) the aluminum strip, (to) the copper strip. SOLUTION Use afiumfinum as He ”fireman maiem‘d =- L C) in OMPUWH'ViUM Yt- Ea/E¢= [05/75. =‘ 1-9 . in copper a 5.5109 mm 316.3 Tine neu‘i'n! art's apical 525‘qu mm above +52 bo'H’owu $410W+ 1n Aal'": 1:9(2111611‘41 ca.o1m1c«1<1.aom1‘ = 22115.2 m” If flab 11:4. 11,14 J}.- ’ ”(24181151 (14101.4 169M111 01m) 1762.5 m." [R‘- I= 1.4-1: =' ‘483? Mm“ = 4.003310 In" (12.) Ahm'nm: ' n - 1.0 3:12.551“ . Quoqlm-s 0.0059991 _11.o)(35)(o.ooemn _ -* z- 014 .4 “Ohm.” :- 56.0210 P4, 5G. Pa. j = “5.510qw1m '3 '- 0.0055510“! m = 1:;8.Ih:1o"19¢;L a 63.4 MP¢ d ...
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