Thermal Stress

Thermal Stress

Thermal stress develops when expansion or contraction of a body is restricted.

### Formula

$$Stress=Y\alpha\Delta T$$

### Terminologies

- Y → Young's modulus.

- α → Coefficient of linear expansion.

- ΔT → Change in temperature.

### Conditions / Special Cases

If expansion is free:

$$Stress=0$$

### Usage

- Used in thermal expansion problems.