13.121. PLANE121 - 2D 8-Node Electrostatic Solid

Matrix or VectorGeometryShape FunctionsIntegration Points
Dielectric Permittivity and Electrical Conductivity Coefficient Matrices, Charge Density Load VectorQuadEquation 11–1423 x 3
TriangleEquation 11–1203
Surface Charge Density and Load VectorSame as coefficient matrix, specialized to the face2
 

13.121.1. Other Applicable Sections

Electromagnetics describes the derivation of the electrostatic element matrices and load vectors as well as electric field evaluations.

 

13.121.2. Assumptions and Restrictions

A dropped midside node implies that the edge is straight and that the potential varies linearly along that edge.