18_Mechanics Homework Mechanics of Materials Solution - 1.8 Each of the four vertical links has an 8 x 36 mm uniform rectangular cross section and each

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Unformatted text preview: 1.8 Each of the four vertical links has an 8 x 36- mm uniform rectangular cross section and each ot‘the four pins has :1 l6- mm diameter. 1.23 For the assembly and loading ofProb. l 8, determine (a) the average shearing stresrs in the pin at B, (b) the average bearing stress at B in link 80, (c) the average bearing stress at B in member ABC, knowing that this member has a 10 x SO-mm uniform rectangular cross section. - SOLUTION Use bar ABC as m-Free local); ‘ j EM; = Q (amen—“u -(0.ozs+0.040)(202103) = o B Van = 32.5x103 N . I .U (a) Shear PM 0.1" B ’L) '—‘ :80 Jr‘nv" clan/He skeet” ( i D where A= 1364‘: 'Ebﬁiél‘ - 201.0940" "1‘ t 3 g 7: - 32.5 5'0 = 80.8 xlO‘ mama «a - (2)0831. 06. xto“ (lo) Bearinﬁ Pink 81) A: alt = (0.0I6)(o.oos)- 128%)" m‘ 51 = 1;.» = W = 1263540“ 127.0 MPO.‘ A: alt = (o.om)(0.oxo)= mono" m‘ L 5L= F” = M = ,2osuo‘ 203 M1344 A lsouo“ l l: l E (c) Bearihq in ABC 03" B I I l l ...
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