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in Physics by (53.1k points)

Two strips of metal are riveted together at their ends by four rivets, each of diameter 6 mm. What is the maximum tension that can be exerted by the riveted strip if the shearing stress on the rivet is not to exceed 6.9 x 107 Pa? Assume that each rivet is to carry one quarter of the load.

1 Answer

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Best answer

r = 6/2 = 3 mmm = 3 x 10-3; Max. stress = 6.9 x 107 Pa

Max. load on a rivet = Max. stress × area of cross-section = 6.9 x 107 x 22/7 x 22/7 x 3 x 10-32

∴ Max. tension = 4 × Max. load = 4 x 6.9 x 107 x 22/7 x 9 x 10-6

= 7.8 x 103 N

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