13.294. SHELL294 - 4-Node Thermal Shell

Matrix or VectorShape FunctionsIntegration Points
Conductivity Matrix and Heat Generation Load VectorEquation 11–227
KEYOPT(1)=0 (through-the-thickness option):

In-plane:

Full quadrilateral shape: 2 x 2
Degenerate triangular shape: 3

Through-the-thickness:

1, 3, 5, 7, or 9 per layer. Defaults to 3
KEYOPT(1)=1 (membrane option):

In-plane:

Full quadrilateral shape: 2 x 2
Degenerate triangular shape: 1

Through-the-thickness:

always 1 per layer, irrespective of NUMPT in SECDATA
Specific Heat MatrixEquation 11–227. Matrix is diagonalized as described in Lumped MatricesSame as conductivity matrix
Convection Surface Matrix and Load VectorEquation 11–227 specialized to the face2 x 2
 

13.294.1. Other Applicable Sections

Heat Flow describes the derivation of the element matrices and load vectors as well as heat flux evaluations for a general thermal analysis element.