A GENERALIZED HIERARCHICAL FE-MODEL FOR LAMINATED COMPOSITES

An extension of the hierarchic models for thin, orthotropic laminated plates proposed by ([1]) is presented. The main idea of the hierarchic model concept is the adaptive choice of a suitable model for a precis e and effective approximation of global and local effects. In this con text a recursive scheme for an automatic determination of models of ar bitrary order is developed. This generalization offers the opportunity to integrate the concept in nonlinear algorithms, for example to stud y instability and collapse phenomena of thin plates.