SEMINAIRE D'ANALYSE NUMERIQUE
Année universitaire 2014-2015


Jeudi 5 février 2015 : Carla MANNI et Hendrik SPELEERS (Università di Roma “Tor Vergata”)
Isogeometric Analysis: a short introduction and few perspectives.

Isogeometric Analysis (IgA) is a simulation paradigm aiming to reduce the gap between the worlds of Finite Element Analysis (FEA) and Computer-Aided Design (CAD). The main idea is to use the CAD representations not only to model physical domains but also to approximate the solution of differential problems. Tensor-product B-splines and Non-Uniform Rational B-Splines (NURBS) are common tools in CAD, and so they are in IgA.
Unfortunately, NURBS present various drawbacks ranging from a poor behavior with respect to differentiation/integration to the lack of strictly localized refinement. This motivates the interest in alternative spline structures for IgA. In this talk we briefly introduce the IgA paradigm and shortly discuss the use of alternative spline spaces in this context.