Physics model

The materials expand, or shrink when the temperature changes. With macroscopic models it can be modeled with the thermal expansion coefficients $\alpha$, with the generality of the formalism it can be written:

$\epsilon=\epsilon_0 +\alpha \cdot T$

$\epsilon_{ij}=\epsilon_{0ij} +\alpha_{ij} \cdot T$

In the material database the $\alpha$ matrix expected to be diagonal with the convention $\alpha_{ii} = \alpha_{i}$

Examples

Thermal Stress in Plane

• physicswiki/thermal_stress.txt