CILAMCE2017-0648 BOUNDARY ELEMENT AND MESH-REDUCED METHODS

Computation of geometric properties in solids written in IGES files

Bruno Bartolozzi Corrêa¹; Fernando Morais de Loyola¹; Lucas Silveira Campos²; Éder Lima de Albuquerque¹

¹ Universidade de Brasília; ² Universidade Federal do Espírito Santo

doi:10.20906/CPS/CILAMCE2017-0648

Resumo

This work presents the implementation of a numerical code for calculating the geometrical properties of solids modeled in CAD programs and exported in IGES format. Initially, various types of representation of curves and surfaces are shown finishing with NURBS surfaces. Then it is shown how the surface area and volume were calculated on trimmed NURBS surface using the radial integration method. Finally, numerical results obtained by the program were verified through analytical results and, for more complex solids, the surface area and volume values given by SOLIDWORKS software.

Palavras-chave: NURBS; Surface area; Volume; Trimmed surfaces; Radial Integration Method

Como citar

Bruno Bartolozzi Corrêa; Fernando Morais de Loyola; Lucas Silveira Campos; Éder Lima de Albuquerque. “Computation of geometric properties in solids written in IGES files”. XXXVIII Ibero-Latin American Congress on Computational Methods in Engineering. CILAMCE2017. 2017. DOI: 10.20906/CPS/CILAMCE2017-0648