Stress, strain, the stress/strain diagram, Young’s modulus and factor of safety

What this note covers

1. Stress and strain: definitions that score
2. Reading the stress/strain diagram
3. Hooke's law and Young's modulus from test data
4. Factor of safety and allowable stress
5. Shear stress in pins, bolts and rivets
6. Selecting materials using stress–strain properties
7. Practice and exam checklist

7 sections · 11 key terms & formulas · 6 common mistakes