IsoGeometric Analysis has shown to be a very promising tool for an integrated design and … See more

Since its introduction by Hughes et al. [1] and Cottrell et al. [2], IsoGeometric Analysis demonstrates a high potential gain with respect to efficiency, quality and accuracy i… See more

We briefly review the IGA concept based on B-Splines and NURBS presented by Hughes et al. [1], Cottrell et al. [2].
B-Splines are piecewise polynomial functions w… See more

In the following, we briefly review some Spline technologies developed to set up local refinement in IGA. For illustration purpose, we consider in 1D a coarse B-Spline basi… See more

LR B-Spline refinement is constructed in 1D by inserting one singular knot or a mesh line in 2D. Mesh lines are defined by a knot value in one of the parametric direction and by an exten… See more

3D IGA is implemented in Radioss by introducing a new part property which is an element type. It allows a user to define a 3D unrefined global model consisting of one or mor… See more