Fluids & Materials • Materials
The Stress-Strain Curve
5 min read
Material questions usually reduce to reading a point off a stress-strain curve or applying a single relation. Knowing the landmarks is most of the topic.
| Landmark | Meaning |
|---|---|
| Proportional limit | Stress and strain stop being linear |
| Yield strength | Permanent deformation begins |
| Ultimate strength | The maximum stress the material carries |
| Fracture point | The specimen separates |
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