#AORTA.GEO GMSH CRACK#

To drive the adaptive mesh refinement, we present a recovery-based error estimator for the proposed method. The PHT-splines overcome certain limitations of non-uniform rational B-splines (NURBS)-based formulations in particular, they make local refinements feasible.

#AORTA.GEO GMSH CRACK#

In this paper, an adaptive extended IGA (XIGA) approach based on polynomial splines over hierarchical T-meshes (PHT-splines) for modeling crack propagation is presented. SUMMARY Adaptive local refinement is one of the main issues for isogeometric analysis (IGA). Furthermore, implementation of the extended IGA which incorporates enrichment functions through the partition of unity method (PUM) is also presented, where several fracture examples in both two-dimensions and three-dimensions are given as illustration.

In this manuscript, through a clear and simple Matlab⃝R implementation, we present an introduction to IGA applied to the Finite Element (FE) method and related computer implementation aspects. The tight coupling of CAD and analysis within IGA requires knowledge from both fields and it is one of the goals of the present paper to outline much of the commonly used notation. The benefits of such an approach are evident, since the time taken from design to analysis is greatly reduced leading to large savings in cost and time for industry. Isogeometric analysis (IGA) is a fundamental step forward in computational mechanics that offers the possibility of integrating methods for analysis into Computer Aided Design (CAD) tools and vice versa.

Aorta.geo gmsh