Chapter 7

Mechanical Properties of Solids: A Material’s Response to Loads or Forces

Learning Objectives

After careful study of this chapter, you should be able to do the following:

1.  Identify various types of loading (static and dynamic; tension, compression, bending, torsion, and combined; uniaxial, biaxial, and triaxial).

2.  Define engineering stress and engineering strain.

3.  State Hooke’s law and identify the conditions under which it is valid.

4.  Define Poisson’s ratio and explain its origin.

5.  Given an engineering stress–engineering strain diagram, identify and determine (a) the modulus of elasticity, (b) the proportional limit, (c) the yield stress or strength at a strain offset of 0.002 or 0.2%, (d) the tensile (ultimate) stress ...

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