Flexible Shells

The nonlinear intrinsic equations of elastic thin shells are simplified by the assumption widely tested in the linear theory as the basis of the Novozhilov’s complex equations. The obtained equations directly specialize themselves for the class of shells designed for large elastic displacements. Another aim of this contribution is to further the vector form of nonlinear shell-theory. This form combines the graphic staticgeometric duality with the short-cut way between the invariant and physical-component presentation.