Co-rotational thin membrane elements

Författare: Xiao, H., Eriksson, 
Dokumenttyp: Konferens
Tillstånd: Publicerad
Tidskrift: Proc. IASS-IACM 2005
År: 2005


A unified approach to the finite element method in a co-rotational (CR) framework was studied, focussing on problems described by nodal translations only. By separating rigid body motion and deformational displacements, most of the nonlinearity is treated by the CR filter. A commonly applicable filter was developed according to the framework, where generality and a nodal contribution technique are emphasized. Several continuum elements are developed in this framework, taking advantage of existing linear elements and the filter. Numerical examples with large displacements were tested with the CR elements developed in this way. The test results and the performance of the elements were analyzed, and conclusions are drawn, proving the unified approach to be promising.