| Matrix or Vector | Geometry | Shape Functions | Integration Points |
|---|---|---|---|
| Conductivity Matrix and Heat Generation Load Vector | Quad | Equation 11–141 | 3 x 3 |
| Triangle | Equation 11–119 | 3 | |
| Specific Heat Matrix | Same as conductivity matrix. If KEYOPT(14) = 1, matrix is diagonalized as described in Lumped Matrices | Same as conductivity matrix | |
| Convection Surface Matrix and Load Vector | Same as conductivity matrix, specialized to the face | 2 | |
Heat Flow describes the derivation of the thermal element matrices and load vectors as well as heat flux evaluations. If KEYOPT(14) = 1, the specific heat matrix is diagonalized as described in Lumped Matrices.