The non-linear dynamic finite element analysis of composite cylindrical shells considering large rotations

摘要

A new nonlinear finite element formulation is developed for the nonlinear dynamics of shell structures. ^Using a vectorial approach, the kinematics that can be used to describe very large displacements and large rotations are derived. ^Green strain measures and 2nd Piola Kirchhoff stress measures are used in the determination of the total potential. ^A displacement based eight-noded cylindrical shell element with a total of 36 DOFs is developed. ^Several numerical examples are dynamically analyzed to observe the characteristics of large displacements and large rotations. ^(Author)