ISOGEOMETRIC ANALYSIS OF FREE VIBRATION OF TRUSSES AND PLANE STRESS

Mateus Rauen¹; Roberto Dalledone Machado¹; Marcos Arndt¹

¹ Universidade Federal do Paraná

Baixar PDF doi:10.20906/CPS/CILAMCE2015-0112

Resumo

Actually Isogeometric Analysis (IGA) have proven high accuracy and efficacy in dynamical problems, openning possibilities to improve the traditional FEM models. At the same time of IGA development, some steps forward in GFEM were done concerning also applications for dynamical problems. The aim of this paper is to test the response of IGA for free vibration problems of trusses and plane stress. Based on numerical applications, IGA models have their convergence and accuracy checked and compared with those developed in FEM and GFEM. The results shows high accuracy for IGA models, and reinforce its way as a promising tool.

Palavras-chave: Isogeometric Analysis; Free Vibration; Framed Structures; GFEM