Geometrically nonlinear analysis of layerwise anisotropic shell structures by hybrid strain based lower order elements

摘要

The objective of the investigation reported in this paper is to develop a hybrid-strain-based lower order shell element as a viable alternative to conventional solid elements for modeling and analysis of layerwise anisotropic shell structures undergoing large deformation of finite strains and finite rotations. Lower order hybrid-strain-based triangular shell elements for geometrically nonlinear analysis of isotropic shell struc- tures, developed earlier by the authors, are employed as the basic building block of the layerwise element.