Stress-Strain Curve

Stress-Strain Curve

### Formula

$$Slope=\frac{Stress}{Strain}$$

### Conditions / Special Cases

### Elastic Region

$$Stress\propto Strain$$

### Plastic Region

$$Stress\not\propto Strain$$

### Terminologies

- Elastic Limit → Maximum stress up to which body returns to original shape.

- Yield Point → Point where permanent deformation starts.

- Breaking Point → Point where material breaks.

### Usage

- Used in graph-based JEE questions.