Civil Engineering Department, São Paulo State University, Avenue Eng. Luiz Edmundo C. Coube, 14-01, Vargem Limpa, 17033-360, SP, Bauru, Brazil
Copyright © 2009 Heitor Miranda Bottura and Antonio Carlos Rigitano. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
This work summarizes the HdHr group of Hermitian integration algorithms for dynamic structural analysis applications. It proposes a procedure for their use when nonlinear terms are present in the equilibrium equation. The simple pendulum problem is solved as a first example and the numerical results are discussed. Directions to be pursued in future research are also mentioned.