Hybrid strain based geometrically nonlinear laminated composite triangular shell finite elements

摘要

The investigation reported hear was concerned with the development of flat triangular shell finite elements for geometrically nonlinear static and dynamic analysis of large-scale laminated composite plate and shell structures. Each of these elements, based on the first-order lamination theory, has three nodes and each node has six degrees of freedom (dof). The updated Lagrangian formulation and modified incremental Hellin- ger-Reissner variational principle were adopted.