Materials, 2nd Edition

Chapter 6 Beyond elasticity: Plasticity, yielding and ductility

Chapter contents

• 6.1 Introduction and synopsis 112
• 6.2 Strength, plastic work and ductility: definition and measurement 112
• 6.3 The big picture: charts for yield strength 116
• 6.4 Drilling down: the origins of strength and ductility 119
• 6.5 Manipulating strength 127
• 6.6 Summary and conclusions 136
• 6.7 Further reading 136
• 6.8 Exercises 137
• 6.9 Exploring design with CES 138
• 6.10 Exploring the science with CES Elements 138

The verb ‘to yield’ has two seemingly contradictory meanings. To yield under force is to submit to it, to surrender. To yield a profit has a different, more comfortable connotation: to bear fruit, to be useful. The yield strength, when speaking of a material, ...