Abstract
The reformulated four-node shell element has been shown to exhibit an excellent behaviour with respect to a well-known set of benchmark tests for shell elements. Recently the performance of the RFNS element was re-confirmed in terms of its asymptotic behaviour by means of classical and new limit tests. In the present paper, the RFNS formulation is extended to incorporate geometric nonlinear behaviour. The total Lagrangian formulation is employed. The RFNS element nonlinear formulation allows for large displacements and large rotations. An efficient performance of the new nonlinear shell element formulation is confirmed for the applications investigated.
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