Modeling of Composite Shells in 6-Parameter Nonlinear Theory with Drilling Degree of Freedom

摘要

Within the framework of a 6-parameter nonlinear shell theory, with strain measures of Cosserat type, constitutive relations are proposed for thin elastic composite shells. The material law is expressed in terms of five engineering constants of classical anisotropic continuum plus an additional parameter accounting for drilling stiffness. The theory allows for unlimited displacements and rotations. A number of examples are presented to show the correctness of the proposed model.