
| Matrix or Vector | Shape Functions | Integration Points | 
|---|---|---|
| Conductivity Matrix and Heat Generation Load Vector | Equation 11–227 | In-plane: 2 x 2  Through-the-thickness: 1, 3, 5, 7, or 9 per layer. Defaults to 3  | 
| Specific Heat Matrix | Equation 11–227. Matrix is diagonalized as described in Lumped Matrices | Same as conductivity matrix | 
| Convection Surface Matrix and Load Vector | Equation 11–227 specialized to the face | 2 x 2 | 
Heat Flow describes the derivation of the element matrices and load vectors as well as heat flux evaluations for a general thermal analysis element.