Abstract
We introduce a quadrilateral element for plane strain or axisymmetric analysis of incompressible or nearly incompressible materials. This quadrilateral is made of four constant strain triangles. The divergence is taken as constant over the quadrilaterals; Lagrange multipliers are avoided by using a penalty function approach. Numerical examples are given. Such an element can also be used for the solution of Navier-Stokes equations.
| Original language | English |
|---|---|
| Pages (from-to) | 5-19 |
| Number of pages | 15 |
| Journal | Calcolo |
| Volume | 16 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 1979 |