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10_Mechanics Homework Mechanics of Materials Solution

# 10_Mechanics Homework Mechanics of Materials Solution -...

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Unformatted text preview: PROBLEM 1.10 1.10 The frame shown consists of four wooden members, ABC. DEF, BE. and C F. Knowing that each member has a 2 x 4-in rectanguiar cross section and that each pin has a ‘/2 - in, diameter, determine the maximum value of the average normal stress (a) in‘member BE, (b) in member CF. ar——— 45' m ——-[-—3°' n-—*| C SOLUTION ‘ a" AJJ suPpor+ readh'ons +2: Figure 0.3 Shaun. Usinc: en-Hw. Flume as -Free boar ' 2W - 40 D, - {45+30)(420) = o E- _ 900 )L. {203% FEE) - (sowgmr = 0 F35 = -2250 1’6. (so)(§ Fae U - USED, = o R, ‘ 750 A. I 225014 S+ress .‘n COMPressim member BE ’/ Area A = 2M x 4"" 7‘ 8i": (0-) Gear—"=‘EB'E‘: “3&9: -——23:p:, S'H‘BSS in +6msfon member CF M‘ﬂl‘mum seed-ion 0.000. 0669“ ad‘ Pf”. Am. == (make-0.53 = 7.0 .-..I (m 6 = ~%‘7 = 7f: = IO’Hpsr 4 ...
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