BRAINCAKEThe Young Modulus
If the limit of proportionality is not exceeded then stress ε is directly proportional to strain σ.<.p>The ratio of stress to strain is called the Young modulus E.
The unit is the same as the unit for stress i.e pascal (Pa) or Nm-2
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Key terms in this lesson
- limit of proportionality
- The point up to which the extension of a material is directly proportional to the applied force.
More in Materials
- Metal Wire Deformation
- Rubber
- Polythene
- Tensile Stress
- Tensile Strain
- Stress-Strain Graph
- Measuring the Young Modulus
- More Stress-Strain Graphs
All 14 lessons in Materials · All OCR AS-level Physics topics