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20_Mechanics Homework Mechanics of Materials Solution

20_Mechanics Homework Mechanics of Materials Solution -...

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Unformatted text preview: PROBLEM 1125 1.9 Two horizontal S-kip forces are applied to pin B of the assembly shown. Knowing that a pin of‘O.8~in. diameter is used at each connection, determine the maximum value of the average normal stress (a) in link AB, (b) in link BC 0‘5 “‘- l.25 For the assembly and loading of Probe 1.9, determine (a) the average shearing stress in the pin at A, (b) the average bearing stress at A in member AB. [is SOLUTION “J’s: Joiu'l‘ B as ‘lrree badly. ‘ j l0 WP; ‘ ~ F IL ‘8 For. E Law GP Sines FOV‘CQ ”mule i . I FAB __ Fe; fl '0 _ _ . . E gm 43" .- SM 60' — 5M 95 FAQ - 7'32Mk‘Ps E (GI—l Sheari'nfl 5+ ress ‘m Fi" oil" A 2’ : gig I lfl New A: Info!” = %(o-8)"= 0.5026 n" (, _: ’E __ 7. 32.0.5— ._ 7- 28 7- 28 kg; 4 " (21(05026) - “:73 (b) Baaum'me shoes: xi A in member AB As = tel =' (0-5"l(0.8) = 0.4 in‘ - Fig _ 7.3205 _ i . 61, .. A» - 0.1+ - 18.30 18.3015. 4 [:3 I :3 ...
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