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9th Edition

Barry J. Goodno + 1 other

Publisher: Cengage Learning

ISBN: 9781337093347

Chapter 5, Problem 5.4.6P

Textbook Problem

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A bar of rectangular cross section is loaded and supported as shown in the figure. The distance between supports is *L = *1.75 m, and the height of the bar is *h = *140 mm. The deflection at the midpoint is measured as 2.5 mm.

(a) What is the maximum normal strain £ at the top and bottom of the bar?

(b) If allowable strain * e_{a}= *0.0006 and the deflection cannot exceed 4.3 mm, what is the maximum permissible length of the bar?

**(a)**

To determine

The maximum normal strain at the top and bottom of the bar.

**Given Information:**

**Formula used:**

**Calculation:**

We know that:

And we also know that the formula for the deflection is,

(b)

To determine

The maximum permissible length of the bar for the given parameters.

Mechanics of Materials (MindTap Course List)

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