CILAMCE2017-1309 DEVELOPMENTS AND APPLICATIONS OF SPECIAL ENRICHMENT METHODS AND INNOVATIVE DISCRETIZATION TECHNIQUES - MESHFREE, POU METHODS AND GFEM/XFEM, ISOGEOMETRIC ANALYSIS

AN OOP APPROACH FOR AN ISOGEOMETRIC COHESIVE INTERFACE ELEMENT

Edson Moreira Dantas Junior¹; Elias Barroso²; Evandro Parente Junior²

¹ Centro Universitário Unichristus; ² Universidade Federal do Ceará

doi:10.20906/CPS/CILAMCE2017-1309

Resumo

Delamination is one of the biggest problems in fracture mechanics. One of the most used method to predict failure is the finite element method though cohesive elements. Since isogeometric methods are obtaining great visibility because of it geometric integration with CAD software (using it proper geometry), the present work discusses the computer simulation of fracture using isogeometric interface element. The discontinuity is inserted through knot insertion. An OOP discussion is raised since the IGA interface element is obtained simply and easily through a FEM /IGA framework. This approach allows the handling of 2D and 3D models with different element shapes and constitutive models in a simple and easily extensible way. The structures geometries are modeled using plane NURBS elements. The computational implementation developed in this work was verified and validated using results available in the literature.

Palavras-chave: Fracture Mechanics; Isogeometric Analysis; Delamination ; OOP

Como citar

Edson Moreira Dantas Junior; Elias Barroso; Evandro Parente Junior. “AN OOP APPROACH FOR AN ISOGEOMETRIC COHESIVE INTERFACE ELEMENT”. XXXVIII Ibero-Latin American Congress on Computational Methods in Engineering. CILAMCE2017. 2017. DOI: 10.20906/CPS/CILAMCE2017-1309