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707_Mechanics Homework Mechanics of Materials Solution

# 707_Mechanics Homework Mechanics of Materials Solution - I...

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Unformatted text preview: [ I i._i i. J '—1 L" .1 y—‘—1 1 ,44_J m uWﬂanWm.mdw~Mm ._ ...-..s.. PROBLEM 6 50 6.50 A plate of thickness 1 is bent as shown and then used as a beam. For a vertical ' shear Of 600 lb, determine (a) the thickness r for which the maximmn shearing stress :18 300 psi, (b) the corresponding shearing stress at point E. Also sketch the shear ﬂow m the cross section. SOLUTION LED .- LEF ’ Wig" + 2" =- 5.2 ;H‘ Newt“) and; ﬂies a." 1"} in. aLctn AB Capcufw'l'e I I“ _— (scum? r 17.29 Z I“ .— 753L512 twee? = 9.9M t 1,. - (atttauiv r 34.5.: 2: IEF‘: In”; = \$9842? IFr, 7 I53 "" l7.28 to L :1: = 2mm 1: (an M Ford C (Etct Q“ + Q.‘ .— (3t)(2,-4) +(2.c no.2».- 1032 t : 19,; . : v0. _ (eoa)(:o.32 t) , . f I -- fl ~ (300)(8‘L03.t)- 0.23IG‘8 In (8‘1.0Q‘)(0.23|68)=‘ 20.94 9.3 ll Us) I , O + (3Xo.2sIsS)(2.-|nt~ LGGS' .‘n‘ - V0.5r (90030493 ) _ . _. F c, 5 I (zo.eq)(o.23ms)' 209 f’" ...
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