Structural Dynamic Analysis Considering a Locally-defined Time Integration Procedure

Resumo

This paper addresses the use of a locally-defined time-marching methodology for the dynamic analysis
of frame structures. The discussed formulation allows specifying time integration parameters at an element level,
enabling intended numerical features, such as numerical damping, to be locally applied, providing a much more
versatile approach. Additionally, these locally-defined time integration parameters may also be established
following the inherent properties of each element of the discretized model, allowing optimized definitions to be
carried out and enhanced accuracy to be provided. The presented technique is unconditionally stable, second-order
accurate, and truly self-starting, and it allows adaptive controllable algorithm dissipation. At the end of the
manuscript, numerical examples are presented, illustrating the effectiveness of the discussed methodology.