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9th Edition

Barry J. Goodno + 1 other

Publisher: Cengage Learning

ISBN: 9781337093347

Chapter 5, Problem 5.5.24P

Textbook Problem

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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 = *600 N. The cross section is 25 mm wide and 50 mm high, and the hole has a diameter of 10 mm.

Find the bending stresses at the top of the beam, at the top of the hole, and at the bottom of the beam.

To determine

Bending stresses at top and bottom of the beam and at the top of the hole.

**Given:**

Load,

Width,

Height,

Rectangular beam with can be shown as:

Maximum bending moment:

Properties of cross − section:

Using line B − B as reference axis:

Distances to the centroid C:

Moment of inertia about the neutral axis (The z axis):

All dimensions in

Rectangle:

Mechanics of Materials (MindTap Course List)

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