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Mechanics of Materials Questions for HW #7

# Mechanics of Materials Questions for HW #7 - Knowing that...

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6.2 Three boards, each 2 in. thick, are nailed together to form a beam that is subjected to a vertical shear. Knowing that the allowable shearing force in each nail is 150 lb, determine the allowable shear if the spacing s between the nails is 3in.

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6.4 A square box beam is made of two 20 x 80-mm planks and two 20x120-mm planks nailed together as shown. Knowing that the spacing between the nails is s = 30 mm and that the vertical shear in the beam is V = 1200 N, determine (a) the shearing force in each nail, (b) the maximum shearing stress in the beam.
6.30 The built-up timber beam is subjected to a vertical shear of 1200lb.

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Unformatted text preview: Knowing that the allowable shearing force in the nails is 75lb, determine the largest permissible spacing s of the nails. 6.15 For the beam and loading show, determine the minimum required depth h, knowing that for the grade of timber used, σ all = 1750 psi and τ all = 130 psi. 6.22 For the beam and loading shown, consider section n-n and determine the shearing stress at (a) point a, (b) at point b. 6.23 For the beam and loading shown, determine the largest shearing stress in section n-n....
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Mechanics of Materials Questions for HW #7 - Knowing that...

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