Dynamic finite element formulation for Cosserat elastic plates
Dynamic finite element formulation for Cosserat elastic plates
GODIO ; STEFANOU ; SAB ; SULEM
Type de document
ARTICLE A COMITE DE LECTURE REPERTORIE DANS BDI (ACL)
Langue
anglais
Auteur
GODIO ; STEFANOU ; SAB ; SULEM
Résumé / Abstract
A displacement and rotation-based dynamic finite element formulation for Cosserat plates is discussed in detail in this paper. Special attention is given to the validation of the element through adequate benchmarks and patch tests. The choice of the interpolation functions and the order of integration of the stiffness and the mass matrices are extensively argued. The possibility of local system deficiencies is explored, and a shear locking investigation specifically elaborated for Cosserat plates is carried out. It is shown how the present formulation has interesting computational properties as compared to a classical continuum-based formulation and how it can provide suitable results despite the use of reduced integration. An example of application of the finite element is given, in which the natural frequencies of a masonry panel modelled by means of discrete elements are computed and compared with the finite elements solution.
Source
International journal for numerical methods in engineering, num. 13, pp. 992-1018 p.
Editeur
Wiley
