OOF2: The Manual

Couplings:ThermalExpansion:Isotropic
	6.4.1. Material Properties

Name

Couplings:ThermalExpansion:Isotropic — Isotropic thermal expansion

Details

Property Category: ThermalExpansion
Parameters:

alpha

Thermal expansion coefficient. Type: A real number.

T0

Temperature at which the thermal expansion vanishes. Type: A real number.
Fields: Temperature
Fluxes: Stress

Discussion

Isotropic thermal expansion makes an additive contribution of

$-C_{ijkl} \alpha_{kl} (T-T_0)$

(6.72)

to the Stress, where $C_{ijkl}$ is the Material's elastic modulus, and $T$ is the local Temperature Field.

$\alpha_{kl}$ is the thermal expansion coefficient, which is a symmetric second rank tensor whose diagonal elements, $\alpha_{ii}$ , are equal to the parameter alpha, and whose off-diagonal elements are 0.

$T_0$ is equal to the parameter T0. It is the temperature at which the thermal strain vanishes.


Electric:SpaceCharge		Couplings:ThermalExpansion:Anisotropic:Cubic