Question: A fiberglass bracket ABCD of solid circular cross section has the shape and dimensions shown in the figure. A vertical load P = 40N acts

A fiberglass bracket ABCD of solid circular cross section has the shape and dimensions shown in the figure. A vertical load P = 40N acts at the free end D.
Determine the minimum permissible diameter dmin of the bracket if the allowable bending stress in the material is 30Mpa and b = 37mm.

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