Question: A cantilever beam AB with a rectangular cross section has a longitudinal hole drilled throughout its length (see figure). The beam supports a load P

A cantilever beam AB with a rectangular cross section has a longitudinal hole drilled throughout its length (see figure). The beam supports a load P = 600N. The cross section is 25mm wide and 50mm high, and the hole has a diameter of 10mm.
Find the bending stresses at the top of the beam, at the top of the hole, and at the bottom of the beam.

10 mm 50 mm 12.5 mm 37.5 mm P=600 N L = 0.4 m 25 mm

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