Mixed Petrov-Galerkin methods for the Timoshenko beam problem
1987; Elsevier BV; Volume: 63; Issue: 2 Linguagem: Inglês
10.1016/0045-7825(87)90168-x
ISSN1879-2138
AutoresAbimael F. D. Loula, Thomas J.R. Hughes, Leopoldo P. Franca, Isidoro Miranda,
Tópico(s)Numerical methods for differential equations
ResumoA new mixed Petrov-Galerkin method is presented for the Timoshenko beam problem. The method has enhanced stability compared to the Galerkin formulation, allowing new combinations of interpolation, in particular, equal-order stress and displacement fields. The methodology is easily generalizable for multi-dimensional Hellinger-Reissner systems.
Referência(s)