GTBL042-07 GTBL042-Callister-v2 August 6, 2007 12:43

Chapter 7 Mechanical Properties

Amodern Rockwell hardness tester. (Photograph courtesy of Wilson

Instruments Division, Instron Corporation, originator of the Rockwell®

Hardness Tester.)

WHY STUDYMechanical Properties?

It is incumbent on engineers to understand how the

various mechanical properties are measured and what

these properties represent; they may be called upon to

design structures/components using predetermined

materials such that unacceptable levels of deformation

and/or failure will not occur. We demonstrate this

procedure with respect to the design of a tensile-testing

apparatus in Design Example 7.1.

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