Free vibration analysis for shells of revolution based on p-version mixed finite element formulation
We present a new p-version mixed finite element for free vibration analysis of shells of revolution. The introduction of hierarchical high-order displacement functions and field-consistent stress parameters yield locking-free and accurate numerical results. The loss of accuracy due to Guyan reduction in formulating the present mixed finite element is not observed. The element having the cubic displacement functions and quadratic stress resultant functions shows the most efficient performance.
free vibration analysis shells of revolution p-version mixed finite element hierarchical shape functions