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9th Edition

Barry J. Goodno + 1 other

Publisher: Cengage Learning

ISBN: 9781337093347

Chapter 7, Problem 7.3.24P

Textbook Problem

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The stresses acting on a stress element on the arm of a power excavator (see figure) are *a _{x}*=

What is the allowable range of values for the stress if the maximum shear stress is limited to

= 37 MPa?

To determine

The permissible range of values for the stress

**Given information:**

The normal stress along the x -axis is

Write the equation for absolute value of maximum shear stress:

Here, the direct stress in positive y direction is

**Calculation:**

Substitute

Mechanics of Materials (MindTap Course List)

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