Homework%20set%20%2310%20solutions

Homework%20set%20%2310%20solutions - AAE3 52 Homework...

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Unformatted text preview: AAE3 52 Homework Set #10 Due 19 November 2008 (one day before the test) Problem 10-1 a) b) 0) The cross—section shown has a 1000 lb. Fl resultant shear load applied to it. Use the concept of resultant forces and moments to solve for the horizontal location of the _ 6” shear center. G is constant. _ " ‘ I? . For the same section and loading, let G ‘ -_ 0‘ L for the upper web be twice the value of z . ‘ the other two webs and repeat the calculations in part a. Find the effective torsional stiffness for parts (a) and (b). Problem 10-2 3) 19) Determine the shear flow distribution in the thin-wall beam cross-section shown when the 1000 lb. force is applied at the shear center. Find the horizontal location of the shear center from the lower right hand stringer. Compute the effective stiffness if G=4x1 06 psi. torsional Problem 10—2 $003.3? 152532 f , = 152.07“ um T}? N ‘2. 5 c9 2 E §r {I :5 .6. G D . 163: z 91‘ 9L? J“ (gal)? (45%” = 1000 Q, Q‘- % 1 ' [ooo /0-2 -———— Q"! L A "a 0 ' M Fun-3W 1 azw” I .. G 0 a ’32 +Az~loJ GM ‘9'” f) i Z} 53—: 660,4 A? 2/ JAP Q40" flgum NP: gm“ : £29362” I :2 6‘2” c - :,40A Q=20A @ :FM (Ci) ANNE w toWuLT—bb HIT. gar-3’“ $07;- qu 115 T a” ma use the concept of force and moment equivalence to find the shear f10ws in the section shown. Why can't we use this approach in a1] prob?ems?t Both stringer areas are equa1. There are two webs. I I vRoBLEM fifio C+§M6M CfiWWa‘WU—JCSum about PM a.) I 2%9‘ = QOOOODCS') _ 1‘: - 80000 ‘ Q )(3qu + 12°) ...
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