Uma Comparação Preliminar entre os Métodos de Interpolação Direta e da Dupla Reciprocidade na solução da Equação de Onda Acústica em duas dimensões

Resumo

This work presents an initial performance test of the Direct Interpolation Element Method applied to
scalar wave propagation problems, dealing particularly with the response of a bar subjected to an impact load. This
benchmark problem, due to its numerical difficulties, is appropriate to analyze the formulation consistency. The
proposed research aims to compare, in a preliminary manner, the accuracy of the Direct Interpolation technique
versus the well-known Dual Reciprocity formulation, in terms of response and frequencies. Houlboult integration
scheme has been selected as step-time procedure, due to its greater numerical stability.