Page 498 - Shigley's Mechanical Engineering Design

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Screws, Fasteners, and the Design of Nonpermanent Joints 473

1 -in steel plate
2

Problem 8–79 6 in

6 in 6 in
2000 lbf

(a) If two fasteners are used, should the array be arranged vertically, horizontally, or diago-
nally? How would you decide?
(b) If three fasteners are used, should a linear or triangular array be used? For a triangular array,
what should be the orientation of the triangle? How would you decide?
8–80 Using your experience with Prob. 8–79, specify an optimal bolt pattern for two bolts for the
bracket in Prob. 8–79 and size the bolts.

8–81 Using your experience with Prob. 8–79, specify an optimal bolt pattern for three bolts for the
bracket in Prob. 8–79 and size the bolts.