BRAINCAKEDefinitions
Plastic Deformation
Material no longer returns to original length when force is removed.
Occurs beyond elastic limit.
Ultimate Tensile Stress
Beyond the UTS (breaking stress) the wire loses its strength.
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Key terms in this lesson
- Elastic limit
- The point beyond which a material no longer returns to its original length when the deforming force is removed.
- Tensile stress
- The force applied to a material divided by its cross-sectional area.
More in Materials
- Tensile Stress
- Tensile Strain
- Young Modulus
- Stress-Strain Graph for Metal Wire
- Other Stress-Strain Curves
- Loading and Unloading
- Strain Energy
- Polythene
All 18 lessons in Materials · All AQA AS-level Physics topics