13.90. SOLID90 - 3-D 20-Node Thermal Solid

Matrix or VectorGeometryShape FunctionsIntegration Points
Conductivity Matrix and Heat Generation Load VectorBrickEquation 11–23514
WedgeEquation 11–2113 x 3
PyramidEquation 11–1952 x 2 x 2
TetEquation 11–1874
Specific Heat MatrixSame as conductivity matrix. If KEYOPT(1) = 1, the matrix is diagonalized as described in Lumped Matrices.Same as conductivity matrix
Convection Surface Matrix and Load VectorQuadEquation 11–913 x 3
TriangleEquation 11–636

13.90.1. Other Applicable Sections

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

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